7979938996 has 6 divisors (see below), whose sum is σ = 13964893250. Its totient is φ = 3989969496.

The previous prime is 7979938973. The next prime is 7979939017. The reversal of 7979938996 is 6998399797.

It can be written as a sum of positive squares in only one way, i.e., 5658048400 + 2321890596 = 75220^2 + 48186^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 997492371 + ... + 997492378.

Almost surely, 2^7979938996 is an apocalyptic number.

It is an amenable number.

7979938996 is a deficient number, since it is larger than the sum of its proper divisors (5984954254).

7979938996 is a wasteful number, since it uses less digits than its factorization.

7979938996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1994984753 (or 1994984751 counting only the distinct ones).

The product of its digits is 416649744, while the sum is 76.

The square root of 7979938996 is about 89330.5042860500. The cubic root of 7979938996 is about 1998.3268503421.

The spelling of 7979938996 in words is "seven billion, nine hundred seventy-nine million, nine hundred thirty-eight thousand, nine hundred ninety-six".