630685693806 has 32 divisors (see below), whose sum is σ = 1504244141568. Its totient is φ = 172361307360.

The previous prime is 630685693753. The next prime is 630685693817. The reversal of 630685693806 is 608396586036.

It is a self number, because there is not a number n which added to its sum of digits gives 630685693806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 326440905 + ... + 326442836.

It is an arithmetic number, because the mean of its divisors is an integer number (47007629424).

Almost surely, 2^630685693806 is an apocalyptic number.

630685693806 is an abundant number, since it is smaller than the sum of its proper divisors (873558447762).

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

630685693806 is a wasteful number, since it uses less digits than its factorization.

630685693806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652883776.

The product of its (nonzero) digits is 33592320, while the sum is 60.

The spelling of 630685693806 in words is "six hundred thirty billion, six hundred eighty-five million, six hundred ninety-three thousand, eight hundred six".