21753870714 has 24 divisors (see below), whose sum is σ = 47158544160. Its totient is φ = 7247419848.

The previous prime is 21753870703. The next prime is 21753870727. The reversal of 21753870714 is 41707835712.

It is a self number, because there is not a number n which added to its sum of digits gives 21753870714.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287772 + ... + 355415.

It is an arithmetic number, because the mean of its divisors is an integer number (1964939340).

Almost surely, 2^21753870714 is an apocalyptic number.

21753870714 is an abundant number, since it is smaller than the sum of its proper divisors (25404673446).

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

21753870714 is a wasteful number, since it uses less digits than its factorization.

21753870714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645074 (or 645071 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The spelling of 21753870714 in words is "twenty-one billion, seven hundred fifty-three million, eight hundred seventy thousand, seven hundred fourteen".