8373157173 has 6 divisors (see below), whose sum is σ = 12094560374. Its totient is φ = 5582104776.

The previous prime is 8373157171. The next prime is 8373157181. The reversal of 8373157173 is 3717513738.

8373157173 is a `hidden beast` number, since 8 + 3 + 7 + 3 + 1 + 571 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7839685764 + 533471409 = 88542^2 + 23097^2 .

It is not a de Polignac number, because 8373157173 - 2¹ = 8373157171 is a prime.

It is a super-2 number, since 2×8373157173² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8373157171) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 465175390 + ... + 465175407.

Almost surely, 2^8373157173 is an apocalyptic number.

It is an amenable number.

8373157173 is a deficient number, since it is larger than the sum of its proper divisors (3721403201).

8373157173 is a wasteful number, since it uses less digits than its factorization.

8373157173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930350803 (or 930350800 counting only the distinct ones).

The product of its digits is 370440, while the sum is 45.

The square root of 8373157173 is about 91504.9570952306. The cubic root of 8373157173 is about 2030.6250894359.

The spelling of 8373157173 in words is "eight billion, three hundred seventy-three million, one hundred fifty-seven thousand, one hundred seventy-three".