128098938768 has 40 divisors (see below), whose sum is σ = 331040666208. Its totient is φ = 42684367872.

The previous prime is 128098938743. The next prime is 128098938787. The reversal of 128098938768 is 867839890821.

It is a super-2 number, since 2×128098938768² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 341505 + ... + 610592.

Almost surely, 2^128098938768 is an apocalyptic number.

It is an amenable number.

128098938768 is an abundant number, since it is smaller than the sum of its proper divisors (202941727440).

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

128098938768 is a wasteful number, since it uses less digits than its factorization.

128098938768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954911 (or 954905 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 69.

The spelling of 128098938768 in words is "one hundred twenty-eight billion, ninety-eight million, nine hundred thirty-eight thousand, seven hundred sixty-eight".