630938951976 has 16 divisors (see below), whose sum is σ = 1577347380000. Its totient is φ = 210312983984.

The previous prime is 630938951957. The next prime is 630938951999. The reversal of 630938951976 is 679159839036.

It is a super-2 number, since 2×630938951976² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13144561476 + ... + 13144561523.

It is an arithmetic number, because the mean of its divisors is an integer number (98584211250).

Almost surely, 2^630938951976 is an apocalyptic number.

It is an amenable number.

630938951976 is an abundant number, since it is smaller than the sum of its proper divisors (946408428024).

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

630938951976 is a wasteful number, since it uses less digits than its factorization.

630938951976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26289123008 (or 26289123004 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 66.

The spelling of 630938951976 in words is "six hundred thirty billion, nine hundred thirty-eight million, nine hundred fifty-one thousand, nine hundred seventy-six".