7978159752 has 64 divisors (see below), whose sum is σ = 20601408000. Its totient is φ = 2572024320.

The previous prime is 7978159751. The next prime is 7978159759. The reversal of 7978159752 is 2579518797.

It is not an unprimeable number, because it can be changed into a prime (7978159751) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2266698 + ... + 2270214.

It is an arithmetic number, because the mean of its divisors is an integer number (321897000).

Almost surely, 2^7978159752 is an apocalyptic number.

It is an amenable number.

7978159752 is an abundant number, since it is smaller than the sum of its proper divisors (12623248248).

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

7978159752 is a wasteful number, since it uses less digits than its factorization.

7978159752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606 (or 6602 counting only the distinct ones).

The product of its digits is 11113200, while the sum is 60.

The square root of 7978159752 is about 89320.5449602722. The cubic root of 7978159752 is about 1998.1783205791.

The spelling of 7978159752 in words is "seven billion, nine hundred seventy-eight million, one hundred fifty-nine thousand, seven hundred fifty-two".