21885704070372 has 72 divisors (see below), whose sum is σ = 57395369714592. Its totient is φ = 7292157062400.

The previous prime is 21885704070367. The next prime is 21885704070383. The reversal of 21885704070372 is 27307040758812.

21885704070372 is a `hidden beast` number, since 2 + 188 + 57 + 0 + 40 + 7 + 0 + 372 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2443629 + ... + 7052852.

Almost surely, 2^{21885704070372} is an apocalyptic number.

It is an amenable number.

21885704070372 is an abundant number, since it is smaller than the sum of its proper divisors (35509665644220).

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

21885704070372 is a wasteful number, since it uses less digits than its factorization.

21885704070372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9498871 (or 9498857 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 54.

The spelling of 21885704070372 in words is "twenty-one trillion, eight hundred eighty-five billion, seven hundred four million, seventy thousand, three hundred seventy-two".