21826923856744 has 16 divisors (see below), whose sum is σ = 41131137924000. Its totient is φ = 10858620410352.

The previous prime is 21826923856739. The next prime is 21826923856757. The reversal of 21826923856744 is 44765832962812.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 21826923856744.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6855188062 + ... + 6855191245.

It is an arithmetic number, because the mean of its divisors is an integer number (2570696120250).

Almost surely, 2^{21826923856744} is an apocalyptic number.

It is an amenable number.

21826923856744 is a deficient number, since it is larger than the sum of its proper divisors (19304214067256).

21826923856744 is a wasteful number, since it uses less digits than its factorization.

21826923856744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13710379512 (or 13710379508 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 67.

The spelling of 21826923856744 in words is "twenty-one trillion, eight hundred twenty-six billion, nine hundred twenty-three million, eight hundred fifty-six thousand, seven hundred forty-four".