7321713568 has 24 divisors (see below), whose sum is σ = 15523441668. Its totient is φ = 3379252224.

The previous prime is 7321713541. The next prime is 7321713571. The reversal of 7321713568 is 8653171237.

It can be written as a sum of positive squares in 2 ways, for example, as 7291110544 + 30603024 = 85388^2 + 5532^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8799721 + ... + 8800552.

Almost surely, 2^7321713568 is an apocalyptic number.

It is an amenable number.

7321713568 is an abundant number, since it is smaller than the sum of its proper divisors (8201728100).

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

7321713568 is a wasteful number, since it uses less digits than its factorization.

7321713568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17600296 (or 17600288 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 7321713568 is about 85567.0121483741. The cubic root of 7321713568 is about 1941.7988742125.

The spelling of 7321713568 in words is "seven billion, three hundred twenty-one million, seven hundred thirteen thousand, five hundred sixty-eight".