631918903456612 has 12 divisors (see below), whose sum is σ = 1105865960589936. Its totient is φ = 315957200430920.

The previous prime is 631918903456573. The next prime is 631918903456613. The reversal of 631918903456612 is 216654309819136.

631918903456612 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (631918903456613) 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, 562192714 + ... + 563315617.

It is an arithmetic number, because the mean of its divisors is an integer number (92155496715828).

Almost surely, 2^{631918903456612} is an apocalyptic number.

It is an amenable number.

631918903456612 is a deficient number, since it is larger than the sum of its proper divisors (473947057133324).

631918903456612 is a wasteful number, since it uses less digits than its factorization.

631918903456612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125648698 (or 1125648696 counting only the distinct ones).

The product of its (nonzero) digits is 50388480, while the sum is 64.

The spelling of 631918903456612 in words is "six hundred thirty-one trillion, nine hundred eighteen billion, nine hundred three million, four hundred fifty-six thousand, six hundred twelve".