128276472592 has 20 divisors (see below), whose sum is σ = 248799813516. Its totient is φ = 64070069120.

The previous prime is 128276472587. The next prime is 128276472617. The reversal of 128276472592 is 295274672821.

It can be written as a sum of positive squares in 2 ways, for example, as 109735837696 + 18540634896 = 331264^2 + 136164^2 .

It is a super-2 number, since 2×128276472592² (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 3 ways as a sum of consecutive naturals, for example, 4244923 + ... + 4275034.

Almost surely, 2^128276472592 is an apocalyptic number.

It is an amenable number.

128276472592 is a deficient number, since it is larger than the sum of its proper divisors (120523340924).

128276472592 is an equidigital number, since it uses as much as digits as its factorization.

128276472592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520906 (or 8520900 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 55.

The spelling of 128276472592 in words is "one hundred twenty-eight billion, two hundred seventy-six million, four hundred seventy-two thousand, five hundred ninety-two".