21722582058 has 32 divisors (see below), whose sum is σ = 43767573696. Its totient is φ = 7187298048.

The previous prime is 21722582033. The next prime is 21722582117. The reversal of 21722582058 is 85028522712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490585 + ... + 533027.

It is an arithmetic number, because the mean of its divisors is an integer number (1367736678).

Almost surely, 2^21722582058 is an apocalyptic number.

21722582058 is an abundant number, since it is smaller than the sum of its proper divisors (22044991638).

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

21722582058 is a wasteful number, since it uses less digits than its factorization.

21722582058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43078.

The product of its (nonzero) digits is 179200, while the sum is 42.

The spelling of 21722582058 in words is "twenty-one billion, seven hundred twenty-two million, five hundred eighty-two thousand, fifty-eight".