264128902625 has 16 divisors (see below), whose sum is σ = 376723281792. Its totient is φ = 181116961200.

The previous prime is 264128902561. The next prime is 264128902627. The reversal of 264128902625 is 526209821462.

It is not a de Polignac number, because 264128902625 - 2⁶ = 264128902561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264128902625.

It is not an unprimeable number, because it can be changed into a prime (264128902627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150929927 + ... + 150931676.

It is an arithmetic number, because the mean of its divisors is an integer number (23545205112).

Almost surely, 2^264128902625 is an apocalyptic number.

264128902625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264128902625 is a deficient number, since it is larger than the sum of its proper divisors (112594379167).

264128902625 is an equidigital number, since it uses as much as digits as its factorization.

264128902625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301861625 (or 301861615 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 47.

The spelling of 264128902625 in words is "two hundred sixty-four billion, one hundred twenty-eight million, nine hundred two thousand, six hundred twenty-five".