128876515004 has 12 divisors (see below), whose sum is σ = 225541397424. Its totient is φ = 64436115744.

The previous prime is 128876514983. The next prime is 128876515039. The reversal of 128876515004 is 400515678821.

It is a super-2 number, since 2×128876515004² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 128876515004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 396017 + ... + 643880.

It is an arithmetic number, because the mean of its divisors is an integer number (18795116452).

Almost surely, 2^128876515004 is an apocalyptic number.

It is an amenable number.

128876515004 is a deficient number, since it is larger than the sum of its proper divisors (96664882420).

128876515004 is a wasteful number, since it uses less digits than its factorization.

128876515004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070884 (or 1070882 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 47.

The spelling of 128876515004 in words is "one hundred twenty-eight billion, eight hundred seventy-six million, five hundred fifteen thousand, four".