7979488793 has 2 divisors, whose sum is σ = 7979488794. Its totient is φ = 7979488792.

The previous prime is 7979488721. The next prime is 7979488819. The reversal of 7979488793 is 3978849797.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7929546304 + 49942489 = 89048^2 + 7067^2 .

It is a cyclic number.

It is not a de Polignac number, because 7979488793 - 2²² = 7975294489 is a prime.

It is a super-2 number, since 2×7979488793² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7979488393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3989744396 + 3989744397.

It is an arithmetic number, because the mean of its divisors is an integer number (3989744397).

Almost surely, 2^7979488793 is an apocalyptic number.

It is an amenable number.

7979488793 is a deficient number, since it is larger than the sum of its proper divisors (1).

7979488793 is an equidigital number, since it uses as much as digits as its factorization.

7979488793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192036096, while the sum is 71.

The square root of 7979488793 is about 89327.9843777973. The cubic root of 7979488793 is about 1998.2892698684.

The spelling of 7979488793 in words is "seven billion, nine hundred seventy-nine million, four hundred eighty-eight thousand, seven hundred ninety-three".