264427640325 has 36 divisors (see below), whose sum is σ = 475506315648. Its totient is φ = 140466180000.

The previous prime is 264427640317. The next prime is 264427640341. The reversal of 264427640325 is 523046724462.

264427640325 is a `hidden beast` number, since 264 + 4 + 2 + 7 + 64 + 0 + 325 = 666.

It is not a de Polignac number, because 264427640325 - 2³ = 264427640317 is a prime.

It is a super-2 number, since 2×264427640325² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2284629 + ... + 2397578.

It is an arithmetic number, because the mean of its divisors is an integer number (13208508768).

Almost surely, 2^264427640325 is an apocalyptic number.

264427640325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

264427640325 is a deficient number, since it is larger than the sum of its proper divisors (211078675323).

264427640325 is a wasteful number, since it uses less digits than its factorization.

264427640325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4682474 (or 4682466 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 45.

The spelling of 264427640325 in words is "two hundred sixty-four billion, four hundred twenty-seven million, six hundred forty thousand, three hundred twenty-five".