64117924525 has 6 divisors (see below), whose sum is σ = 79506226442. Its totient is φ = 51294339600.

The previous prime is 64117924517. The next prime is 64117924543. The reversal of 64117924525 is 52542971146.

It can be written as a sum of positive squares in 3 ways, for example, as 985834404 + 63132090121 = 31398^2 + 251261^2 .

It is not a de Polignac number, because 64117924525 - 2³ = 64117924517 is a prime.

It is a super-2 number, since 2×64117924525² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1282358466 + ... + 1282358515.

Almost surely, 2^64117924525 is an apocalyptic number.

It is an amenable number.

64117924525 is a deficient number, since it is larger than the sum of its proper divisors (15388301917).

64117924525 is a wasteful number, since it uses less digits than its factorization.

64117924525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564716991 (or 2564716986 counting only the distinct ones).

The product of its digits is 604800, while the sum is 46.

The spelling of 64117924525 in words is "sixty-four billion, one hundred seventeen million, nine hundred twenty-four thousand, five hundred twenty-five".