8173194648 has 32 divisors (see below), whose sum is σ = 20436207360. Its totient is φ = 2723968800.

The previous prime is 8173194577. The next prime is 8173194677. The reversal of 8173194648 is 8464913718.

It is a super-2 number, since 2×8173194648² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8173194648.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153261 + ... + 199587.

It is an arithmetic number, because the mean of its divisors is an integer number (638631480).

Almost surely, 2^8173194648 is an apocalyptic number.

It is an amenable number.

8173194648 is an abundant number, since it is smaller than the sum of its proper divisors (12263012712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8173194648 is a wasteful number, since it uses less digits than its factorization.

8173194648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53687 (or 53683 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 8173194648 is about 90405.7224295011. The cubic root of 8173194648 is about 2014.3299681210.

The spelling of 8173194648 in words is "eight billion, one hundred seventy-three million, one hundred ninety-four thousand, six hundred forty-eight".