7315745772 has 18 divisors (see below), whose sum is σ = 17070764844. Its totient is φ = 2438483160.

The previous prime is 7315745771. The next prime is 7315745777. The reversal of 7315745772 is 2775475137.

It is not an unprimeable number, because it can be changed into a prime (7315745771) 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, 283947 + ... + 308637.

Almost surely, 2^7315745772 is an apocalyptic number.

It is an amenable number.

7315745772 is an abundant number, since it is smaller than the sum of its proper divisors (9755019072).

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

7315745772 is an frugal number, since it uses more digits than its factorization.

7315745772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49389 (or 24696 counting only the distinct ones).

The product of its digits is 1440600, while the sum is 48.

The square root of 7315745772 is about 85532.1329793663. The cubic root of 7315745772 is about 1941.2711557883.

Multiplying 7315745772 by its sum of digits (48), we get a square (351155797056 = 592584²).

The spelling of 7315745772 in words is "seven billion, three hundred fifteen million, seven hundred forty-five thousand, seven hundred seventy-two".