7979631696 has 60 divisors (see below), whose sum is σ = 22338049812. Its totient is φ = 2659143168.

The previous prime is 7979631643. The next prime is 7979631697. The reversal of 7979631696 is 6961369797.

It can be written as a sum of positive squares in 2 ways, for example, as 3140481600 + 4839150096 = 56040^2 + 69564^2 .

It is a super-3 number, since 3×7979631696³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7979631697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 844470 + ... + 853866.

Almost surely, 2^7979631696 is an apocalyptic number.

It is an amenable number.

7979631696 is an abundant number, since it is smaller than the sum of its proper divisors (14358418116).

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

7979631696 is a wasteful number, since it uses less digits than its factorization.

7979631696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15308 (or 15299 counting only the distinct ones).

The product of its digits is 23147208, while the sum is 63.

The square root of 7979631696 is about 89328.7842523338. The cubic root of 7979631696 is about 1998.3011987791.

The spelling of 7979631696 in words is "seven billion, nine hundred seventy-nine million, six hundred thirty-one thousand, six hundred ninety-six".