7979057291 has 2 divisors, whose sum is σ = 7979057292. Its totient is φ = 7979057290.

The previous prime is 7979057263. The next prime is 7979057293. The reversal of 7979057291 is 1927509797.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7979057291 - 2⁶ = 7979057227 is a prime.

It is a Sophie Germain prime.

Together with 7979057293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7979057293) 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 as a sum of consecutive naturals, namely, 3989528645 + 3989528646.

It is an arithmetic number, because the mean of its divisors is an integer number (3989528646).

Almost surely, 2^7979057291 is an apocalyptic number.

7979057291 is a deficient number, since it is larger than the sum of its proper divisors (1).

7979057291 is an equidigital number, since it uses as much as digits as its factorization.

7979057291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2500470, while the sum is 56.

The square root of 7979057291 is about 89325.5690773924. The cubic root of 7979057291 is about 1998.2532491248.

The spelling of 7979057291 in words is "seven billion, nine hundred seventy-nine million, fifty-seven thousand, two hundred ninety-one".