21944804058 has 24 divisors (see below), whose sum is σ = 47652988500. Its totient is φ = 7298640384.

The previous prime is 21944804047. The next prime is 21944804069. The reversal of 21944804058 is 85040844912.

It is an interprime number because it is at equal distance from previous prime (21944804047) and next prime (21944804069).

It can be written as a sum of positive squares in 2 ways, for example, as 21944570769 + 233289 = 148137^2 + 483^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1349553 + ... + 1365716.

Almost surely, 2^21944804058 is an apocalyptic number.

21944804058 is an abundant number, since it is smaller than the sum of its proper divisors (25708184442).

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

21944804058 is a wasteful number, since it uses less digits than its factorization.

21944804058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2715726 (or 2715723 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 21944804058 in words is "twenty-one billion, nine hundred forty-four million, eight hundred four thousand, fifty-eight".