21792113083872 has 36 divisors (see below), whose sum is σ = 61971321583080. Its totient is φ = 7264037694528.

The previous prime is 21792113083849. The next prime is 21792113083883. The reversal of 21792113083872 is 27838031129712.

21792113083872 is a `hidden beast` number, since 2 + 17 + 9 + 211 + 30 + 8 + 387 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37833529372 + ... + 37833529947.

It is an arithmetic number, because the mean of its divisors is an integer number (1721425599530).

Almost surely, 2^{21792113083872} is an apocalyptic number.

It is an amenable number.

21792113083872 is an abundant number, since it is smaller than the sum of its proper divisors (40179208499208).

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

21792113083872 is a wasteful number, since it uses less digits than its factorization.

21792113083872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75667059335 (or 75667059324 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 21792113083872 in words is "twenty-one trillion, seven hundred ninety-two billion, one hundred thirteen million, eighty-three thousand, eight hundred seventy-two".