63888640125 has 32 divisors (see below), whose sum is σ = 109740094464. Its totient is φ = 32974776000.

The previous prime is 63888640099. The next prime is 63888640139. The reversal of 63888640125 is 52104688836.

It is a happy number.

63888640125 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 63888640125 - 2¹⁵ = 63888607357 is a prime.

It is a super-3 number, since 3×63888640125³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2736274 + ... + 2759523.

It is an arithmetic number, because the mean of its divisors is an integer number (3429377952).

Almost surely, 2^63888640125 is an apocalyptic number.

It is an amenable number.

63888640125 is a deficient number, since it is larger than the sum of its proper divisors (45851454339).

63888640125 is a wasteful number, since it uses less digits than its factorization.

63888640125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5495846 (or 5495836 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 63888640125 in words is "sixty-three billion, eight hundred eighty-eight million, six hundred forty thousand, one hundred twenty-five".