21974903008068 has 24 divisors (see below), whose sum is σ = 51421692817600. Its totient is φ = 7303979221920.

The previous prime is 21974903008049. The next prime is 21974903008073. The reversal of 21974903008068 is 86080030947912.

It is a junction number, because it is equal to n+sod(n) for n = 21974903007999 and 21974903008017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2623551568 + ... + 2623559943.

Almost surely, 2^{21974903008068} is an apocalyptic number.

It is an amenable number.

21974903008068 is an abundant number, since it is smaller than the sum of its proper divisors (29446789809532).

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

21974903008068 is a wasteful number, since it uses less digits than its factorization.

21974903008068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247111867 (or 5247111865 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The spelling of 21974903008068 in words is "twenty-one trillion, nine hundred seventy-four billion, nine hundred three million, eight thousand, sixty-eight".