501688680 has 32 divisors (see below), whose sum is σ = 1505066400. Its totient is φ = 133783616.

The previous prime is 501688667. The next prime is 501688709. The reversal of 501688680 is 86886105.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 2090250 + ... + 2090489.

It is an arithmetic number, because the mean of its divisors is an integer number (47033325).

Almost surely, 2^501688680 is an apocalyptic number.

It is an amenable number.

501688680 is an abundant number, since it is smaller than the sum of its proper divisors (1003377720).

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

501688680 is a wasteful number, since it uses less digits than its factorization.

501688680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180753 (or 4180749 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 501688680 is about 22398.4079791399. The cubic root of 501688680 is about 794.5930594042.

The spelling of 501688680 in words is "five hundred one million, six hundred eighty-eight thousand, six hundred eighty".