63672839565 has 16 divisors (see below), whose sum is σ = 101881747968. Its totient is φ = 33957112896.

The previous prime is 63672839561. The next prime is 63672839579. The reversal of 63672839565 is 56593827636.

It is not a de Polignac number, because 63672839565 - 2² = 63672839561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63672839499 and 63672839508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63672839561) 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, 228804 + ... + 423906.

It is an arithmetic number, because the mean of its divisors is an integer number (6367609248).

Almost surely, 2^63672839565 is an apocalyptic number.

It is an amenable number.

63672839565 is a deficient number, since it is larger than the sum of its proper divisors (38208908403).

63672839565 is a wasteful number, since it uses less digits than its factorization.

63672839565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216868.

The product of its digits is 48988800, while the sum is 60.

The spelling of 63672839565 in words is "sixty-three billion, six hundred seventy-two million, eight hundred thirty-nine thousand, five hundred sixty-five".