8173400125 has 16 divisors (see below), whose sum is σ = 11127714624. Its totient is φ = 5944290000.

The previous prime is 8173400113. The next prime is 8173400189. The reversal of 8173400125 is 5210043718.

It is not a de Polignac number, because 8173400125 - 2¹⁷ = 8173269053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2970771 + ... + 2973520.

It is an arithmetic number, because the mean of its divisors is an integer number (695482164).

Almost surely, 2^8173400125 is an apocalyptic number.

It is an amenable number.

8173400125 is a deficient number, since it is larger than the sum of its proper divisors (2954314499).

8173400125 is a wasteful number, since it uses less digits than its factorization.

8173400125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5944317 (or 5944307 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 8173400125 is about 90406.8588382541. The cubic root of 8173400125 is about 2014.3468483018.

The spelling of 8173400125 in words is "eight billion, one hundred seventy-three million, four hundred thousand, one hundred twenty-five".