7993797994 has 32 divisors (see below), whose sum is σ = 14764006656. Its totient is φ = 3161047680.

The previous prime is 7993797989. The next prime is 7993798013. The reversal of 7993797994 is 4997973997.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500094 + ... + 515830.

It is an arithmetic number, because the mean of its divisors is an integer number (461375208).

Almost surely, 2^7993797994 is an apocalyptic number.

7993797994 is a deficient number, since it is larger than the sum of its proper divisors (6770208662).

7993797994 is a wasteful number, since it uses less digits than its factorization.

7993797994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18550.

The product of its digits is 243045684, while the sum is 73.

The square root of 7993797994 is about 89408.0421103158. The cubic root of 7993797994 is about 1999.4830325505.

The spelling of 7993797994 in words is "seven billion, nine hundred ninety-three million, seven hundred ninety-seven thousand, nine hundred ninety-four".