128369882512 has 40 divisors (see below), whose sum is σ = 262202360832. Its totient is φ = 60792864000.

The previous prime is 128369882491. The next prime is 128369882519. The reversal of 128369882512 is 215288963821.

It is a super-2 number, since 2×128369882512² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (128369882519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2729989 + ... + 2776612.

Almost surely, 2^128369882512 is an apocalyptic number.

It is an amenable number.

128369882512 is an abundant number, since it is smaller than the sum of its proper divisors (133832478320).

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

128369882512 is a wasteful number, since it uses less digits than its factorization.

128369882512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506687 (or 5506681 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 55.

The spelling of 128369882512 in words is "one hundred twenty-eight billion, three hundred sixty-nine million, eight hundred eighty-two thousand, five hundred twelve".