7981479996 has 24 divisors (see below), whose sum is σ = 21283946880. Its totient is φ = 2280422832.

The previous prime is 7981479971. The next prime is 7981480009. The reversal of 7981479996 is 6999741897.

It is a self number, because there is not a number n which added to its sum of digits gives 7981479996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47508726 + ... + 47508893.

It is an arithmetic number, because the mean of its divisors is an integer number (886831120).

Almost surely, 2^7981479996 is an apocalyptic number.

It is an amenable number.

7981479996 is an abundant number, since it is smaller than the sum of its proper divisors (13302466884).

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

7981479996 is a wasteful number, since it uses less digits than its factorization.

7981479996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95017633 (or 95017631 counting only the distinct ones).

The product of its digits is 61725888, while the sum is 69.

The square root of 7981479996 is about 89339.1291428342. The cubic root of 7981479996 is about 1998.4554738599.

The spelling of 7981479996 in words is "seven billion, nine hundred eighty-one million, four hundred seventy-nine thousand, nine hundred ninety-six".