139117171827 has 16 divisors (see below), whose sum is σ = 185957291520. Its totient is φ = 92511060000.

The previous prime is 139117171813. The next prime is 139117171829. The reversal of 139117171827 is 728171711931.

It is a happy number.

It is not a de Polignac number, because 139117171827 - 2¹² = 139117167731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139117171829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4297452 + ... + 4329702.

It is an arithmetic number, because the mean of its divisors is an integer number (11622330720).

Almost surely, 2^139117171827 is an apocalyptic number.

139117171827 is a deficient number, since it is larger than the sum of its proper divisors (46840119693).

139117171827 is a wasteful number, since it uses less digits than its factorization.

139117171827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35834.

The product of its digits is 148176, while the sum is 48.

The spelling of 139117171827 in words is "one hundred thirty-nine billion, one hundred seventeen million, one hundred seventy-one thousand, eight hundred twenty-seven".