63876381875 has 10 divisors (see below), whose sum is σ = 79819927572. Its totient is φ = 51101105000.

The previous prime is 63876381871. The next prime is 63876381883. The reversal of 63876381875 is 57818367836.

It is not a de Polignac number, because 63876381875 - 2² = 63876381871 is a prime.

It is a super-2 number, since 2×63876381875² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63876381871) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 51100481 + ... + 51101730.

Almost surely, 2^63876381875 is an apocalyptic number.

63876381875 is a deficient number, since it is larger than the sum of its proper divisors (15943545697).

63876381875 is an equidigital number, since it uses as much as digits as its factorization.

63876381875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102202231 (or 102202216 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 62.

The spelling of 63876381875 in words is "sixty-three billion, eight hundred seventy-six million, three hundred eighty-one thousand, eight hundred seventy-five".