21850799504 has 40 divisors (see below), whose sum is σ = 43515048192. Its totient is φ = 10623392640.

The previous prime is 21850799483. The next prime is 21850799527. The reversal of 21850799504 is 40599705812.

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, 82214 + ... + 224634.

Almost surely, 2^21850799504 is an apocalyptic number.

It is an amenable number.

21850799504 is a deficient number, since it is larger than the sum of its proper divisors (21664248688).

21850799504 is a wasteful number, since it uses less digits than its factorization.

21850799504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142695 (or 142689 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 50.

The spelling of 21850799504 in words is "twenty-one billion, eight hundred fifty million, seven hundred ninety-nine thousand, five hundred four".