22139581470 has 64 divisors (see below), whose sum is σ = 55968295680. Its totient is φ = 5589485568.

The previous prime is 22139581459. The next prime is 22139581487. The reversal of 22139581470 is 7418593122.

It is a super-2 number, since 2×22139581470² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 915454 + ... + 939326.

It is an arithmetic number, because the mean of its divisors is an integer number (874504620).

Almost surely, 2^22139581470 is an apocalyptic number.

22139581470 is an abundant number, since it is smaller than the sum of its proper divisors (33828714210).

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

22139581470 is a wasteful number, since it uses less digits than its factorization.

22139581470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25529.

The product of its (nonzero) digits is 120960, while the sum is 42.

The spelling of 22139581470 in words is "twenty-two billion, one hundred thirty-nine million, five hundred eighty-one thousand, four hundred seventy".