398687503624 has 16 divisors (see below), whose sum is σ = 780040768320. Its totient is φ = 190676632080.

The previous prime is 398687503589. The next prime is 398687503733. The reversal of 398687503624 is 426305786893.

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, 1083389772 + ... + 1083390139.

It is an arithmetic number, because the mean of its divisors is an integer number (48752548020).

Almost surely, 2^398687503624 is an apocalyptic number.

It is an amenable number.

398687503624 is a deficient number, since it is larger than the sum of its proper divisors (381353264696).

398687503624 is a wasteful number, since it uses less digits than its factorization.

398687503624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2166779940 (or 2166779936 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 61.

The spelling of 398687503624 in words is "three hundred ninety-eight billion, six hundred eighty-seven million, five hundred three thousand, six hundred twenty-four".