63675718856 has 16 divisors (see below), whose sum is σ = 125675761200. Its totient is φ = 30162182544.

The previous prime is 63675718831. The next prime is 63675718879. The reversal of 63675718856 is 65881757636.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209459450 + ... + 209459753.

It is an arithmetic number, because the mean of its divisors is an integer number (7854735075).

Almost surely, 2^63675718856 is an apocalyptic number.

It is an amenable number.

63675718856 is a deficient number, since it is larger than the sum of its proper divisors (62000042344).

63675718856 is a wasteful number, since it uses less digits than its factorization.

63675718856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418919228 (or 418919224 counting only the distinct ones).

The product of its digits is 50803200, while the sum is 62.

The spelling of 63675718856 in words is "sixty-three billion, six hundred seventy-five million, seven hundred eighteen thousand, eight hundred fifty-six".