139517692322 has 18 divisors (see below), whose sum is σ = 220886696529. Its totient is φ = 66082573800.

The previous prime is 139517692271. The next prime is 139517692357. The reversal of 139517692322 is 223296715931.

It can be written as a sum of positive squares in 2 ways, for example, as 123939906601 + 15577785721 = 352051^2 + 124811^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=264119.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 10029572 + ... + 10043472.

Almost surely, 2^139517692322 is an apocalyptic number.

139517692322 is a deficient number, since it is larger than the sum of its proper divisors (81369004207).

139517692322 is an frugal number, since it uses more digits than its factorization.

139517692322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27842 (or 13922 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 50.

Multiplying 139517692322 by its sum of digits (50), we get a square (6975884616100 = 2641190²).

The spelling of 139517692322 in words is "one hundred thirty-nine billion, five hundred seventeen million, six hundred ninety-two thousand, three hundred twenty-two".