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12575638126381 = 117914471390249
BaseRepresentation
bin1011011011111111111001…
…1100010111111100101101
31122112012220211202202022011
42312333332130113330231
53122014401330021011
642425100212521221
72435363015240641
oct266777634277455
948465824682264
1012575638126381
114009330970150
1214b12ab920211
13702b5409b255
14316942548c21
1516c1c411a621
hexb6ffe717f2d

12575638126381 has 8 divisors (see below), whose sum is σ = 13892534640000. Its totient is φ = 11287684393440.

The previous prime is 12575638126369. The next prime is 12575638126411. The reversal of 12575638126381 is 18362183657521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12575638126381 - 27 = 12575638126253 is a prime.

It is a super-2 number, since 2×125756381263812 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12575638123381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7235694256 + ... + 7235695993.

It is an arithmetic number, because the mean of its divisors is an integer number (1736566830000).

Almost surely, 212575638126381 is an apocalyptic number.

12575638126381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12575638126381 is a deficient number, since it is larger than the sum of its proper divisors (1316896513619).

12575638126381 is a wasteful number, since it uses less digits than its factorization.

12575638126381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14471390339.

The product of its digits is 14515200, while the sum is 58.

The spelling of 12575638126381 in words is "twelve trillion, five hundred seventy-five billion, six hundred thirty-eight million, one hundred twenty-six thousand, three hundred eighty-one".

Divisors: 1 11 79 869 14471390249 159185292739 1143239829671 12575638126381