128252999072 has 24 divisors (see below), whose sum is σ = 275452464672. Its totient is φ = 58296817600.

The previous prime is 128252999051. The next prime is 128252999081. The reversal of 128252999072 is 270999252821.

It is a super-2 number, since 2×128252999072² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128252998999 and 128252999017.

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, 182177204 + ... + 182177907.

It is an arithmetic number, because the mean of its divisors is an integer number (11477186028).

Almost surely, 2^128252999072 is an apocalyptic number.

It is an amenable number.

128252999072 is an abundant number, since it is smaller than the sum of its proper divisors (147199465600).

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

128252999072 is a wasteful number, since it uses less digits than its factorization.

128252999072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364355132 (or 364355124 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 56.

The spelling of 128252999072 in words is "one hundred twenty-eight billion, two hundred fifty-two million, nine hundred ninety-nine thousand, seventy-two".