15413081984856 has 80 divisors (see below), whose sum is σ = 43186900977000. Its totient is φ = 5135789857536.

The previous prime is 15413081984789. The next prime is 15413081984863. The reversal of 15413081984856 is 65848918031451.

15413081984856 is a `hidden beast` number, since 1 + 5 + 4 + 130 + 8 + 19 + 8 + 485 + 6 = 666.

It is a super-2 number, since 2×15413081984856² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15413081984793 and 15413081984802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2657425 + ... + 6155328.

Almost surely, 2^{15413081984856} is an apocalyptic number.

It is an amenable number.

15413081984856 is an abundant number, since it is smaller than the sum of its proper divisors (27773818992144).

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

15413081984856 is a wasteful number, since it uses less digits than its factorization.

15413081984856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8815470 (or 8815457 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 63.

The spelling of 15413081984856 in words is "fifteen trillion, four hundred thirteen billion, eighty-one million, nine hundred eighty-four thousand, eight hundred fifty-six".