7115979312 has 120 divisors (see below), whose sum is σ = 21525764624. Its totient is φ = 2181468672.

The previous prime is 7115979307. The next prime is 7115979329. The reversal of 7115979312 is 2139795117.

It is a happy number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 511683 + ... + 525405.

Almost surely, 2^7115979312 is an apocalyptic number.

7115979312 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7115979312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10762882312).

7115979312 is an abundant number, since it is smaller than the sum of its proper divisors (14409785312).

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

7115979312 is a wasteful number, since it uses less digits than its factorization.

7115979312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14027 (or 14018 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 7115979312 is about 84356.2642131573. The cubic root of 7115979312 is about 1923.4381495167.

The spelling of 7115979312 in words is "seven billion, one hundred fifteen million, nine hundred seventy-nine thousand, three hundred twelve".