15851872414056 has 64 divisors (see below), whose sum is σ = 47674804262400. Its totient is φ = 4290732381888.

The previous prime is 15851872413997. The next prime is 15851872414129. The reversal of 15851872414056 is 65041427815851.

It is a super-2 number, since 2×15851872414056² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a junction number, because it is equal to n+sod(n) for n = 15851872413987 and 15851872414005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2483059530 + ... + 2483065913.

It is an arithmetic number, because the mean of its divisors is an integer number (744918816600).

Almost surely, 2^{15851872414056} is an apocalyptic number.

It is an amenable number.

15851872414056 is an abundant number, since it is smaller than the sum of its proper divisors (31822931848344).

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

15851872414056 is a wasteful number, since it uses less digits than its factorization.

15851872414056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4966125478 (or 4966125474 counting only the distinct ones).

The product of its (nonzero) digits is 10752000, while the sum is 57.

The spelling of 15851872414056 in words is "fifteen trillion, eight hundred fifty-one billion, eight hundred seventy-two million, four hundred fourteen thousand, fifty-six".