2491135763 has 2 divisors, whose sum is σ = 2491135764. Its totient is φ = 2491135762.

The previous prime is 2491135729. The next prime is 2491135781. The reversal of 2491135763 is 3675311942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2491135763 - 2¹⁰ = 2491134739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2491135763.

It is not a weakly prime, because it can be changed into another prime (2491135363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245567881 + 1245567882.

It is an arithmetic number, because the mean of its divisors is an integer number (1245567882).

Almost surely, 2^2491135763 is an apocalyptic number.

2491135763 is a deficient number, since it is larger than the sum of its proper divisors (1).

2491135763 is an equidigital number, since it uses as much as digits as its factorization.

2491135763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 41.

The square root of 2491135763 is about 49911.2789156920. The cubic root of 2491135763 is about 1355.6028259534.

The spelling of 2491135763 in words is "two billion, four hundred ninety-one million, one hundred thirty-five thousand, seven hundred sixty-three".