7904513662091 has 2 divisors, whose sum is σ = 7904513662092. Its totient is φ = 7904513662090.

The previous prime is 7904513662063. The next prime is 7904513662099. The reversal of 7904513662091 is 1902663154097.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7904513662091 - 2³⁰ = 7903439920267 is a prime.

It is not a weakly prime, because it can be changed into another prime (7904513662099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3952256831045 + 3952256831046.

It is an arithmetic number, because the mean of its divisors is an integer number (3952256831046).

Almost surely, 2^{7904513662091} is an apocalyptic number.

7904513662091 is a deficient number, since it is larger than the sum of its proper divisors (1).

7904513662091 is an equidigital number, since it uses as much as digits as its factorization.

7904513662091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The spelling of 7904513662091 in words is "seven trillion, nine hundred four billion, five hundred thirteen million, six hundred sixty-two thousand, ninety-one".