21562498632 has 32 divisors (see below), whose sum is σ = 55645159680. Its totient is φ = 6955644480.

The previous prime is 21562498627. The next prime is 21562498667. The reversal of 21562498632 is 23689426512.

It is a happy number.

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, 14490183 + ... + 14491670.

It is an arithmetic number, because the mean of its divisors is an integer number (1738911240).

Almost surely, 2^21562498632 is an apocalyptic number.

It is an amenable number.

21562498632 is an abundant number, since it is smaller than the sum of its proper divisors (34082661048).

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

21562498632 is a wasteful number, since it uses less digits than its factorization.

21562498632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28981893 (or 28981889 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 48.

The spelling of 21562498632 in words is "twenty-one billion, five hundred sixty-two million, four hundred ninety-eight thousand, six hundred thirty-two".