21714063492 has 48 divisors (see below), whose sum is σ = 55371580992. Its totient is φ = 6568183680.

The previous prime is 21714063451. The next prime is 21714063521. The reversal of 21714063492 is 29436041712.

It is a self number, because there is not a number n which added to its sum of digits gives 21714063492.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74143 + ... + 221190.

It is an arithmetic number, because the mean of its divisors is an integer number (1153574604).

Almost surely, 2^21714063492 is an apocalyptic number.

21714063492 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21714063492 is an abundant number, since it is smaller than the sum of its proper divisors (33657517500).

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

21714063492 is a wasteful number, since it uses less digits than its factorization.

21714063492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295908 (or 295906 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 21714063492 in words is "twenty-one billion, seven hundred fourteen million, sixty-three thousand, four hundred ninety-two".