21989296874332 has 12 divisors (see below), whose sum is σ = 38674642745200. Its totient is φ = 10939398947136.

The previous prime is 21989296874323. The next prime is 21989296874359. The reversal of 21989296874332 is 23347869298912.

It is a hoax number, since the sum of its digits (73) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13812371613 + ... + 13812373204.

Almost surely, 2^{21989296874332} is an apocalyptic number.

It is an amenable number.

21989296874332 is a deficient number, since it is larger than the sum of its proper divisors (16685345870868).

21989296874332 is a wasteful number, since it uses less digits than its factorization.

21989296874332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27624745020 (or 27624745018 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 73.

The spelling of 21989296874332 in words is "twenty-one trillion, nine hundred eighty-nine billion, two hundred ninety-six million, eight hundred seventy-four thousand, three hundred thirty-two".