631726947216 has 120 divisors (see below), whose sum is σ = 1771733905344. Its totient is φ = 210126470400.

The previous prime is 631726947211. The next prime is 631726947221. The reversal of 631726947216 is 612749627136.

631726947216 is a `hidden beast` number, since 6 + 31 + 72 + 69 + 472 + 16 = 666.

It is an interprime number because it is at equal distance from previous prime (631726947211) and next prime (631726947221).

It is not an unprimeable number, because it can be changed into a prime (631726947211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 191372766 + ... + 191376066.

Almost surely, 2^631726947216 is an apocalyptic number.

It is an amenable number.

631726947216 is an abundant number, since it is smaller than the sum of its proper divisors (1140006958128).

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

631726947216 is a wasteful number, since it uses less digits than its factorization.

631726947216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5749 (or 5740 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The spelling of 631726947216 in words is "six hundred thirty-one billion, seven hundred twenty-six million, nine hundred forty-seven thousand, two hundred sixteen".