630978937392 has 40 divisors (see below), whose sum is σ = 1637209694016. Its totient is φ = 209399761216.

The previous prime is 630978937387. The next prime is 630978937409. The reversal of 630978937392 is 293739879036.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28943718 + ... + 28965509.

Almost surely, 2^630978937392 is an apocalyptic number.

It is an amenable number.

630978937392 is an abundant number, since it is smaller than the sum of its proper divisors (1006230756624).

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

630978937392 is a wasteful number, since it uses less digits than its factorization.

630978937392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57909465 (or 57909459 counting only the distinct ones).

The product of its (nonzero) digits is 92588832, while the sum is 66.

The spelling of 630978937392 in words is "six hundred thirty billion, nine hundred seventy-eight million, nine hundred thirty-seven thousand, three hundred ninety-two".