7879099791 has 16 divisors (see below), whose sum is σ = 10792009728. Its totient is φ = 5109530400.

The previous prime is 7879099751. The next prime is 7879099817. The reversal of 7879099791 is 1979909787.

It is a happy number.

It is not a de Polignac number, because 7879099791 - 2¹⁷ = 7878968719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7879099741) 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 15 ways as a sum of consecutive naturals, for example, 761986 + ... + 772256.

It is an arithmetic number, because the mean of its divisors is an integer number (674500608).

Almost surely, 2^7879099791 is an apocalyptic number.

7879099791 is a deficient number, since it is larger than the sum of its proper divisors (2912909937).

7879099791 is a wasteful number, since it uses less digits than its factorization.

7879099791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17222.

The product of its (nonzero) digits is 18003384, while the sum is 66.

The square root of 7879099791 is about 88764.2934461825. The cubic root of 7879099791 is about 1989.8737991397.

The spelling of 7879099791 in words is "seven billion, eight hundred seventy-nine million, ninety-nine thousand, seven hundred ninety-one".