21670050374973 has 96 divisors (see below), whose sum is σ = 42374095126272. Its totient is φ = 10391232424320.

The previous prime is 21670050374909. The next prime is 21670050374977. The reversal of 21670050374973 is 37947305007612.

21670050374973 is a `hidden beast` number, since 2 + 1 + 6 + 70 + 0 + 50 + 37 + 497 + 3 = 666.

It is not a de Polignac number, because 21670050374973 - 2⁶ = 21670050374909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21670050374977) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8849490 + ... + 11029667.

It is an arithmetic number, because the mean of its divisors is an integer number (441396824232).

Almost surely, 2^{21670050374973} is an apocalyptic number.

It is an amenable number.

21670050374973 is a deficient number, since it is larger than the sum of its proper divisors (20704044751299).

21670050374973 is a wasteful number, since it uses less digits than its factorization.

21670050374973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19879216 (or 19879191 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 54.

The spelling of 21670050374973 in words is "twenty-one trillion, six hundred seventy billion, fifty million, three hundred seventy-four thousand, nine hundred seventy-three".