21711400892973 has 80 divisors (see below), whose sum is σ = 36341804822400. Its totient is φ = 12801380745600.

The previous prime is 21711400892959. The next prime is 21711400893011. The reversal of 21711400892973 is 37929800411712.

21711400892973 is a `hidden beast` number, since 2 + 1 + 71 + 1 + 400 + 89 + 2 + 97 + 3 = 666.

It is not a de Polignac number, because 21711400892973 - 2¹⁷ = 21711400761901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21711400892273) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 350441203 + ... + 350503151.

It is an arithmetic number, because the mean of its divisors is an integer number (454272560280).

Almost surely, 2^{21711400892973} is an apocalyptic number.

It is an amenable number.

21711400892973 is a deficient number, since it is larger than the sum of its proper divisors (14630403929427).

21711400892973 is a wasteful number, since it uses less digits than its factorization.

21711400892973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72640 (or 72631 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 21711400892973 in words is "twenty-one trillion, seven hundred eleven billion, four hundred million, eight hundred ninety-two thousand, nine hundred seventy-three".