21907471870332 has 36 divisors (see below), whose sum is σ = 56315817525240. Its totient is φ = 7178719595232.

The previous prime is 21907471870313. The next prime is 21907471870363. The reversal of 21907471870332 is 23307817470912.

21907471870332 is a `hidden beast` number, since 2 + 1 + 90 + 7 + 47 + 187 + 0 + 332 = 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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5157124023 + ... + 5157128270.

It is an arithmetic number, because the mean of its divisors is an integer number (1564328264590).

Almost surely, 2^{21907471870332} is an apocalyptic number.

It is an amenable number.

21907471870332 is an abundant number, since it is smaller than the sum of its proper divisors (34408345654908).

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

21907471870332 is a wasteful number, since it uses less digits than its factorization.

21907471870332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10314252362 (or 10314252357 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 21907471870332 in words is "twenty-one trillion, nine hundred seven billion, four hundred seventy-one million, eight hundred seventy thousand, three hundred thirty-two".