21792845364 has 96 divisors (see below), whose sum is σ = 52296523776. Its totient is φ = 7061228160.

The previous prime is 21792845363. The next prime is 21792845381. The reversal of 21792845364 is 46354829712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21792845363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25251997 + ... + 25252859.

It is an arithmetic number, because the mean of its divisors is an integer number (544755456).

Almost surely, 2^21792845364 is an apocalyptic number.

It is an amenable number.

21792845364 is an abundant number, since it is smaller than the sum of its proper divisors (30503678412).

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

21792845364 is a wasteful number, since it uses less digits than its factorization.

21792845364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1323 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 51.

The spelling of 21792845364 in words is "twenty-one billion, seven hundred ninety-two million, eight hundred forty-five thousand, three hundred sixty-four".