63031772916 has 144 divisors (see below), whose sum is σ = 199944291456. Its totient is φ = 16949689344.

The previous prime is 63031772893. The next prime is 63031772929. The reversal of 63031772916 is 61927713036.

63031772916 is a `hidden beast` number, since 630 + 3 + 1 + 7 + 7 + 2 + 9 + 1 + 6 = 666.

It is a super-2 number, since 2×63031772916² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156801 + ... + 388136.

It is an arithmetic number, because the mean of its divisors is an integer number (1388502024).

Almost surely, 2^63031772916 is an apocalyptic number.

It is an amenable number.

63031772916 is an abundant number, since it is smaller than the sum of its proper divisors (136912518540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63031772916 is a wasteful number, since it uses less digits than its factorization.

63031772916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544980 (or 544966 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The spelling of 63031772916 in words is "sixty-three billion, thirty-one million, seven hundred seventy-two thousand, nine hundred sixteen".