21937514798 has 32 divisors (see below), whose sum is σ = 35903347200. Its totient is φ = 10018508544.

The previous prime is 21937514761. The next prime is 21937514801. The reversal of 21937514798 is 89741573912.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27998 + ... + 211326.

It is an arithmetic number, because the mean of its divisors is an integer number (1121979600).

Almost surely, 2^21937514798 is an apocalyptic number.

21937514798 is a deficient number, since it is larger than the sum of its proper divisors (13965832402).

21937514798 is a wasteful number, since it uses less digits than its factorization.

21937514798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183464.

The product of its digits is 3810240, while the sum is 56.

The spelling of 21937514798 in words is "twenty-one billion, nine hundred thirty-seven million, five hundred fourteen thousand, seven hundred ninety-eight".