22189139508 has 24 divisors (see below), whose sum is σ = 54025731648. Its totient is φ = 7074798016.

The previous prime is 22189139507. The next prime is 22189139513. The reversal of 22189139508 is 80593198122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22189139503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40197441 + ... + 40197992.

It is an arithmetic number, because the mean of its divisors is an integer number (2251072152).

Almost surely, 2^22189139508 is an apocalyptic number.

It is an amenable number.

22189139508 is an abundant number, since it is smaller than the sum of its proper divisors (31836592140).

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

22189139508 is a wasteful number, since it uses less digits than its factorization.

22189139508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80395463 (or 80395461 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 48.

The spelling of 22189139508 in words is "twenty-two billion, one hundred eighty-nine million, one hundred thirty-nine thousand, five hundred eight".