21412862562 has 64 divisors (see below), whose sum is σ = 54408904704. Its totient is φ = 5465171520.

The previous prime is 21412862561. The next prime is 21412862591. The reversal of 21412862562 is 26526821412.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 21412862562.

It is not an unprimeable number, because it can be changed into a prime (21412862561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 615618 + ... + 649469.

It is an arithmetic number, because the mean of its divisors is an integer number (850139136).

Almost surely, 2^21412862562 is an apocalyptic number.

21412862562 is an abundant number, since it is smaller than the sum of its proper divisors (32996042142).

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

21412862562 is a wasteful number, since it uses less digits than its factorization.

21412862562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265143.

The product of its digits is 92160, while the sum is 39.

The spelling of 21412862562 in words is "twenty-one billion, four hundred twelve million, eight hundred sixty-two thousand, five hundred sixty-two".