63712993679 has 4 divisors (see below), whose sum is σ = 64171360680. Its totient is φ = 63254626680.

The previous prime is 63712993667. The next prime is 63712993733. The reversal of 63712993679 is 97639921736.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63712993679 - 2⁸ = 63712993423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63712993639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229183292 + ... + 229183569.

It is an arithmetic number, because the mean of its divisors is an integer number (16042840170).

Almost surely, 2^63712993679 is an apocalyptic number.

63712993679 is a deficient number, since it is larger than the sum of its proper divisors (458367001).

63712993679 is a wasteful number, since it uses less digits than its factorization.

63712993679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458367000.

The product of its digits is 23147208, while the sum is 62.

The spelling of 63712993679 in words is "sixty-three billion, seven hundred twelve million, nine hundred ninety-three thousand, six hundred seventy-nine".