139692169825 has 24 divisors (see below), whose sum is σ = 186561128768. Its totient is φ = 103147145280.

The previous prime is 139692169819. The next prime is 139692169849. The reversal of 139692169825 is 528961296931.

It is a de Polignac number, because none of the positive numbers 2^k-139692169825 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5508124 + ... + 5533426.

Almost surely, 2^139692169825 is an apocalyptic number.

It is an amenable number.

139692169825 is a deficient number, since it is larger than the sum of its proper divisors (46868958943).

139692169825 is a wasteful number, since it uses less digits than its factorization.

139692169825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42313 (or 42308 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 61.

The spelling of 139692169825 in words is "one hundred thirty-nine billion, six hundred ninety-two million, one hundred sixty-nine thousand, eight hundred twenty-five".