21232682076 has 12 divisors (see below), whose sum is σ = 49542924872. Its totient is φ = 7077560688.

The previous prime is 21232682059. The next prime is 21232682089. The reversal of 21232682076 is 67028623212.

It is a tau number, because it is divible by the number of its divisors (12).

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, 884695075 + ... + 884695098.

Almost surely, 2^21232682076 is an apocalyptic number.

It is an amenable number.

21232682076 is an abundant number, since it is smaller than the sum of its proper divisors (28310242796).

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

21232682076 is a wasteful number, since it uses less digits than its factorization.

21232682076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769390180 (or 1769390178 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 21232682076 in words is "twenty-one billion, two hundred thirty-two million, six hundred eighty-two thousand, seventy-six".