2796864491 has 2 divisors, whose sum is σ = 2796864492. Its totient is φ = 2796864490.

The previous prime is 2796864481. The next prime is 2796864509. The reversal of 2796864491 is 1944686972.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2796864491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2796864461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1398432245 + 1398432246.

It is an arithmetic number, because the mean of its divisors is an integer number (1398432246).

Almost surely, 2^2796864491 is an apocalyptic number.

2796864491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2796864491 is an equidigital number, since it uses as much as digits as its factorization.

2796864491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5225472, while the sum is 56.

The square root of 2796864491 is about 52885.3901469962. The cubic root of 2796864491 is about 1408.9334339858.

The spelling of 2796864491 in words is "two billion, seven hundred ninety-six million, eight hundred sixty-four thousand, four hundred ninety-one".