2791897513 has 2 divisors, whose sum is σ = 2791897514. Its totient is φ = 2791897512.

The previous prime is 2791897499. The next prime is 2791897529. The reversal of 2791897513 is 3157981972.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2569678864 + 222218649 = 50692^2 + 14907^2 .

It is a cyclic number.

It is not a de Polignac number, because 2791897513 - 2⁹ = 2791897001 is a prime.

It is not a weakly prime, because it can be changed into another prime (2791897313) 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, 1395948756 + 1395948757.

It is an arithmetic number, because the mean of its divisors is an integer number (1395948757).

Almost surely, 2^2791897513 is an apocalyptic number.

It is an amenable number.

2791897513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2791897513 is an equidigital number, since it uses as much as digits as its factorization.

2791897513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 52.

The square root of 2791897513 is about 52838.4094480521. The cubic root of 2791897513 is about 1408.0988937148.

The spelling of 2791897513 in words is "two billion, seven hundred ninety-one million, eight hundred ninety-seven thousand, five hundred thirteen".