2491746263 has 2 divisors, whose sum is σ = 2491746264. Its totient is φ = 2491746262.

The previous prime is 2491746251. The next prime is 2491746311. The reversal of 2491746263 is 3626471942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2491746263 - 2⁶ = 2491746199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2491746863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1245873131 + 1245873132.

It is an arithmetic number, because the mean of its divisors is an integer number (1245873132).

Almost surely, 2^2491746263 is an apocalyptic number.

2491746263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2491746263 is an equidigital number, since it uses as much as digits as its factorization.

2491746263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The square root of 2491746263 is about 49917.3943931371. The cubic root of 2491746263 is about 1355.7135556242.

The spelling of 2491746263 in words is "two billion, four hundred ninety-one million, seven hundred forty-six thousand, two hundred sixty-three".