72663636627 has 64 divisors (see below), whose sum is σ = 116106792960. Its totient is φ = 44794518912.

The previous prime is 72663636623. The next prime is 72663636637.

72663636627 is a `hidden beast` number, since 7 + 2 + 6 + 6 + 3 + 6 + 3 + 6 + 627 = 666.

72663636627 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 72663636627 - 2² = 72663636623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72663636623) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3597318 + ... + 3617460.

It is an arithmetic number, because the mean of its divisors is an integer number (1814168640).

Almost surely, 2^72663636627 is an apocalyptic number.

72663636627 is a deficient number, since it is larger than the sum of its proper divisors (43443156333).

72663636627 is a wasteful number, since it uses less digits than its factorization.

72663636627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20369 (or 20363 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 54.

The spelling of 72663636627 in words is "seventy-two billion, six hundred sixty-three million, six hundred thirty-six thousand, six hundred twenty-seven".