264401434612625 has 64 divisors (see below), whose sum is σ = 346489928778240. Its totient is φ = 201049716384000.

The previous prime is 264401434612573. The next prime is 264401434612663. The reversal of 264401434612625 is 526216434104462.

It is not a de Polignac number, because 264401434612625 - 2⁸ = 264401434612369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3008997191 + ... + 3009085059.

It is an arithmetic number, because the mean of its divisors is an integer number (5413905137160).

Almost surely, 2^{264401434612625} is an apocalyptic number.

264401434612625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264401434612625 is a deficient number, since it is larger than the sum of its proper divisors (82088494165615).

264401434612625 is a wasteful number, since it uses less digits than its factorization.

264401434612625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94491 (or 94481 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 50.

The spelling of 264401434612625 in words is "two hundred sixty-four trillion, four hundred one billion, four hundred thirty-four million, six hundred twelve thousand, six hundred twenty-five".