7986321312 has 24 divisors (see below), whose sum is σ = 20964093696. Its totient is φ = 2662107072.

The previous prime is 7986321293. The next prime is 7986321331. The reversal of 7986321312 is 2131236897.

It is an interprime number because it is at equal distance from previous prime (7986321293) and next prime (7986321331).

It is a tau number, because it is divible by the number of its divisors (24).

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, 41595328 + ... + 41595519.

It is an arithmetic number, because the mean of its divisors is an integer number (873503904).

Almost surely, 2^7986321312 is an apocalyptic number.

It is an amenable number.

7986321312 is an abundant number, since it is smaller than the sum of its proper divisors (12977772384).

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

7986321312 is a wasteful number, since it uses less digits than its factorization.

7986321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83190860 (or 83190852 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 7986321312 is about 89366.2201953288. The cubic root of 7986321312 is about 1998.8594590401.

The spelling of 7986321312 in words is "seven billion, nine hundred eighty-six million, three hundred twenty-one thousand, three hundred twelve".