8315598722 has 18 divisors (see below), whose sum is σ = 13253782203. Its totient is φ = 3912191232.

The previous prime is 8315598713. The next prime is 8315598757. The reversal of 8315598722 is 2278955138.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 3741646561 + 4573952161 = 61169^2 + 67631^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=64481.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2190458 + ... + 2194250.

Almost surely, 2^8315598722 is an apocalyptic number.

8315598722 is a deficient number, since it is larger than the sum of its proper divisors (4938183481).

8315598722 is an frugal number, since it uses more digits than its factorization.

8315598722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7622 (or 3812 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 50.

The square root of 8315598722 is about 91189.9047153795. The cubic root of 8315598722 is about 2025.9614372293.

Multiplying 8315598722 by its sum of digits (50), we get a square (415779936100 = 644810²).

The spelling of 8315598722 in words is "eight billion, three hundred fifteen million, five hundred ninety-eight thousand, seven hundred twenty-two".