21936424823308 has 48 divisors (see below), whose sum is σ = 39405182781888. Its totient is φ = 10678900736000.

The previous prime is 21936424823281. The next prime is 21936424823329. The reversal of 21936424823308 is 80332842463912.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409303593 + ... + 409357183.

It is an arithmetic number, because the mean of its divisors is an integer number (820941307956).

Almost surely, 2^{21936424823308} is an apocalyptic number.

It is an amenable number.

21936424823308 is a deficient number, since it is larger than the sum of its proper divisors (17468757958580).

21936424823308 is a wasteful number, since it uses less digits than its factorization.

21936424823308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58674 (or 58672 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 55.

The spelling of 21936424823308 in words is "twenty-one trillion, nine hundred thirty-six billion, four hundred twenty-four million, eight hundred twenty-three thousand, three hundred eight".