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12577810672 = 2471720273259
BaseRepresentation
bin10111011011011001…
…00010100011110000
31012110120100222120201
423231230202203300
5201224404420142
65440030044544
7623455424650
oct135554424360
935416328521
1012577810672
115374934359
122530349754
131255a9162b
1487466a360
154d9358ab7
hex2edb228f0

12577810672 has 80 divisors (see below), whose sum is σ = 29512753920. Its totient is φ = 5069343744.

The previous prime is 12577810643. The next prime is 12577810681. The reversal of 12577810672 is 27601877521.

12577810672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3857779 + ... + 3861037.

It is an arithmetic number, because the mean of its divisors is an integer number (368909424).

Almost surely, 212577810672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12577810672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14756376960).

12577810672 is an abundant number, since it is smaller than the sum of its proper divisors (16934943248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12577810672 is a wasteful number, since it uses less digits than its factorization.

12577810672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5318 (or 5312 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 46.

The spelling of 12577810672 in words is "twelve billion, five hundred seventy-seven million, eight hundred ten thousand, six hundred seventy-two".

Divisors: 1 2 4 7 8 14 16 17 28 34 56 68 112 119 136 238 272 476 952 1904 2027 3259 4054 6518 8108 13036 14189 16216 22813 26072 28378 32432 34459 45626 52144 55403 56756 68918 91252 110806 113512 137836 182504 221612 227024 241213 275672 365008 387821 443224 482426 551344 775642 886448 964852 1551284 1929704 3102568 3859408 6205136 6605993 13211986 26423972 46241951 52847944 92483902 105695888 112301881 184967804 224603762 369935608 449207524 739871216 786113167 898415048 1572226334 1796830096 3144452668 6288905336 12577810672