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12625990455 = 3513435328411
BaseRepresentation
bin10111100001001000…
…10101001100110111
31012120221000202211010
423300210111030313
5201324223143310
65444510443303
7624612101541
oct136044251467
935527022733
1012625990455
11539a051561
122544503533
131262a60390
1487ac0c691
154dd6c4320
hex2f0915337

12625990455 has 64 divisors (see below), whose sum is σ = 22682322432. Its totient is φ = 5956554240.

The previous prime is 12625990417. The next prime is 12625990469. The reversal of 12625990455 is 55409952621.

12625990455 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12625990455 - 28 = 12625990199 is a prime.

It is a super-2 number, since 2×126259904552 (a number of 21 digits) contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 430200 + ... + 458610.

It is an arithmetic number, because the mean of its divisors is an integer number (354411288).

Almost surely, 212625990455 is an apocalyptic number.

12625990455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12625990455 is a deficient number, since it is larger than the sum of its proper divisors (10056331977).

12625990455 is a wasteful number, since it uses less digits than its factorization.

12625990455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28528.

The product of its (nonzero) digits is 972000, while the sum is 48.

The spelling of 12625990455 in words is "twelve billion, six hundred twenty-five million, nine hundred ninety thousand, four hundred fifty-five".

Divisors: 1 3 5 13 15 39 43 53 65 129 159 195 215 265 559 645 689 795 1677 2067 2279 2795 3445 6837 8385 10335 11395 28411 29627 34185 85233 88881 142055 148135 369343 426165 444405 1108029 1221673 1505783 1846715 3665019 4517349 5540145 6108365 7528915 15881749 18325095 19575179 22586745 47645247 58725537 64748669 79408745 97875895 194246007 238226235 293627685 323743345 841732697 971230035 2525198091 4208663485 12625990455