7713531243 has 24 divisors (see below), whose sum is σ = 12163147776. Its totient is φ = 4671601200.

The previous prime is 7713531233. The next prime is 7713531247. The reversal of 7713531243 is 3421353177.

7713531243 is a `hidden beast` number, since 77 + 13 + 531 + 2 + 43 = 666.

It is not a de Polignac number, because 7713531243 - 2⁵ = 7713531211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7713531198 and 7713531207.

It is not an unprimeable number, because it can be changed into a prime (7713531247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119146 + ... + 172112.

It is an arithmetic number, because the mean of its divisors is an integer number (506797824).

Almost surely, 2^7713531243 is an apocalyptic number.

7713531243 is a deficient number, since it is larger than the sum of its proper divisors (4449616533).

7713531243 is a wasteful number, since it uses less digits than its factorization.

7713531243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54455 (or 54452 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 7713531243 is about 87826.7114436149. The cubic root of 7713531243 is about 1975.8368503361.

The spelling of 7713531243 in words is "seven billion, seven hundred thirteen million, five hundred thirty-one thousand, two hundred forty-three".