64514563125 has 20 divisors (see below), whose sum is σ = 107489867232. Its totient is φ = 34407766000.

The previous prime is 64514563123. The next prime is 64514563153. The reversal of 64514563125 is 52136541546.

64514563125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64514563125 - 2¹ = 64514563123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64514563123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17202009 + ... + 17205758.

Almost surely, 2^64514563125 is an apocalyptic number.

It is an amenable number.

64514563125 is a deficient number, since it is larger than the sum of its proper divisors (42975304107).

64514563125 is an equidigital number, since it uses as much as digits as its factorization.

64514563125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34407790 (or 34407775 counting only the distinct ones).

The product of its digits is 432000, while the sum is 42.

The spelling of 64514563125 in words is "sixty-four billion, five hundred fourteen million, five hundred sixty-three thousand, one hundred twenty-five".