64028513025 has 72 divisors (see below), whose sum is σ = 115715343744. Its totient is φ = 33841641600.

The previous prime is 64028512967. The next prime is 64028513051. The reversal of 64028513025 is 52031582046.

64028513025 is a `hidden beast` number, since 640 + 2 + 8 + 5 + 1 + 3 + 0 + 2 + 5 = 666.

It is not a de Polignac number, because 64028513025 - 2²³ = 64020124417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 39112507 + ... + 39114143.

It is an arithmetic number, because the mean of its divisors is an integer number (1607157552).

Almost surely, 2^64028513025 is an apocalyptic number.

It is an amenable number.

64028513025 is a deficient number, since it is larger than the sum of its proper divisors (51686830719).

64028513025 is a wasteful number, since it uses less digits than its factorization.

64028513025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111 (or 3103 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 64028513025 in words is "sixty-four billion, twenty-eight million, five hundred thirteen thousand, twenty-five".