7931613252 has 48 divisors (see below), whose sum is σ = 19221450752. Its totient is φ = 2542868640.

The previous prime is 7931613241. The next prime is 7931613253. The reversal of 7931613252 is 2523161397.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7931613252.

It is not an unprimeable number, because it can be changed into a prime (7931613253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4768 + ... + 126039.

Almost surely, 2^7931613252 is an apocalyptic number.

It is an amenable number.

7931613252 is an abundant number, since it is smaller than the sum of its proper divisors (11289837500).

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

7931613252 is a wasteful number, since it uses less digits than its factorization.

7931613252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131008 (or 131006 counting only the distinct ones).

The product of its digits is 68040, while the sum is 39.

The square root of 7931613252 is about 89059.6050518977. The cubic root of 7931613252 is about 1994.2847880662.

The spelling of 7931613252 in words is "seven billion, nine hundred thirty-one million, six hundred thirteen thousand, two hundred fifty-two".