21323384682 has 48 divisors (see below), whose sum is σ = 45360060480. Its totient is φ = 6681260032.

The previous prime is 21323384669. The next prime is 21323384749. The reversal of 21323384682 is 28648332312.

It is a super-2 number, since 2×21323384682² (a number of 21 digits) contains 22 as substring.

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, 1447498 + ... + 1462154.

It is an arithmetic number, because the mean of its divisors is an integer number (945001260).

Almost surely, 2^21323384682 is an apocalyptic number.

21323384682 is an abundant number, since it is smaller than the sum of its proper divisors (24036675798).

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

21323384682 is a wasteful number, since it uses less digits than its factorization.

21323384682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15535 (or 15518 counting only the distinct ones).

The product of its digits is 331776, while the sum is 42.

The spelling of 21323384682 in words is "twenty-one billion, three hundred twenty-three million, three hundred eighty-four thousand, six hundred eighty-two".