128731172584008 has 64 divisors (see below), whose sum is σ = 322003493985600. Its totient is φ = 42886988202240.

The previous prime is 128731172583997. The next prime is 128731172584033. The reversal of 128731172584008 is 800485271137821.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 371395710 + ... + 371742162.

It is an arithmetic number, because the mean of its divisors is an integer number (5031304593525).

Almost surely, 2^{128731172584008} is an apocalyptic number.

It is an amenable number.

128731172584008 is an abundant number, since it is smaller than the sum of its proper divisors (193272321401592).

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

128731172584008 is a wasteful number, since it uses less digits than its factorization.

128731172584008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354862 (or 354858 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 57.

The spelling of 128731172584008 in words is "one hundred twenty-eight trillion, seven hundred thirty-one billion, one hundred seventy-two million, five hundred eighty-four thousand, eight".