21117703860364 has 24 divisors (see below), whose sum is σ = 36980714963360. Its totient is φ = 10551786143616.

The previous prime is 21117703860349. The next prime is 21117703860373. The reversal of 21117703860364 is 46306830771112.

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, 109391494 + ... + 109584370.

Almost surely, 2^{21117703860364} is an apocalyptic number.

It is an amenable number.

21117703860364 is a deficient number, since it is larger than the sum of its proper divisors (15863011102996).

21117703860364 is a wasteful number, since it uses less digits than its factorization.

21117703860364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211057 (or 211055 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 21117703860364 in words is "twenty-one trillion, one hundred seventeen billion, seven hundred three million, eight hundred sixty thousand, three hundred sixty-four".