501379864 has 16 divisors (see below), whose sum is σ = 970413120. Its totient is φ = 242603040.

The previous prime is 501379849. The next prime is 501379877. The reversal of 501379864 is 468973105.

It is a self number, because there is not a number n which added to its sum of digits gives 501379864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010599 + ... + 1011094.

It is an arithmetic number, because the mean of its divisors is an integer number (60650820).

Almost surely, 2^501379864 is an apocalyptic number.

It is an amenable number.

501379864 is a deficient number, since it is larger than the sum of its proper divisors (469033256).

501379864 is a wasteful number, since it uses less digits than its factorization.

501379864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021730 (or 2021726 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 501379864 is about 22391.5132137156. The cubic root of 501379864 is about 794.4299878780.

The spelling of 501379864 in words is "five hundred one million, three hundred seventy-nine thousand, eight hundred sixty-four".