63876251265 has 16 divisors (see below), whose sum is σ = 108213884928. Its totient is φ = 32063373056.

The previous prime is 63876251261. The next prime is 63876251267. The reversal of 63876251265 is 56215267836.

It is not a de Polignac number, because 63876251265 - 2² = 63876251261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (63876251261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125247297 + ... + 125247806.

It is an arithmetic number, because the mean of its divisors is an integer number (6763367808).

Almost surely, 2^63876251265 is an apocalyptic number.

It is an amenable number.

63876251265 is a deficient number, since it is larger than the sum of its proper divisors (44337633663).

63876251265 is a wasteful number, since it uses less digits than its factorization.

63876251265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250495128.

The product of its digits is 3628800, while the sum is 51.

The spelling of 63876251265 in words is "sixty-three billion, eight hundred seventy-six million, two hundred fifty-one thousand, two hundred sixty-five".