8199575864 has 64 divisors (see below), whose sum is σ = 16566690240. Its totient is φ = 3790725120.

The previous prime is 8199575863. The next prime is 8199575869. The reversal of 8199575864 is 4685759918.

It is a junction number, because it is equal to n+sod(n) for n = 8199575797 and 8199575806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8199575863) 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, 3020972 + ... + 3023684.

It is an arithmetic number, because the mean of its divisors is an integer number (258854535).

Almost surely, 2^8199575864 is an apocalyptic number.

It is an amenable number.

8199575864 is an abundant number, since it is smaller than the sum of its proper divisors (8367114376).

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

8199575864 is a wasteful number, since it uses less digits than its factorization.

8199575864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120 (or 3116 counting only the distinct ones).

The product of its digits is 21772800, while the sum is 62.

The square root of 8199575864 is about 90551.5094518032. The cubic root of 8199575864 is about 2016.4949070239.

The spelling of 8199575864 in words is "eight billion, one hundred ninety-nine million, five hundred seventy-five thousand, eight hundred sixty-four".