8139885175 has 48 divisors (see below), whose sum is σ = 10829306880. Its totient is φ = 6047976960.

The previous prime is 8139885157. The next prime is 8139885179. The reversal of 8139885175 is 5715889318.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-8139885175 is a prime.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8139885179) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 13409722 + ... + 13410328.

It is an arithmetic number, because the mean of its divisors is an integer number (225610560).

Almost surely, 2^8139885175 is an apocalyptic number.

8139885175 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

8139885175 is a deficient number, since it is larger than the sum of its proper divisors (2689421705).

8139885175 is a wasteful number, since it uses less digits than its factorization.

8139885175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000 (or 995 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 55.

The square root of 8139885175 is about 90221.3121995020. The cubic root of 8139885175 is about 2011.5898063787.

The spelling of 8139885175 in words is "eight billion, one hundred thirty-nine million, eight hundred eighty-five thousand, one hundred seventy-five".