4997649269 has 2 divisors, whose sum is σ = 4997649270. Its totient is φ = 4997649268.

The previous prime is 4997649247. The next prime is 4997649289. The reversal of 4997649269 is 9629467994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4697320369 + 300328900 = 68537^2 + 17330^2 .

It is a cyclic number.

It is not a de Polignac number, because 4997649269 - 2²⁸ = 4729213813 is a prime.

It is a super-2 number, since 2×4997649269² = 49952996431872468722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4997649289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2498824634 + 2498824635.

It is an arithmetic number, because the mean of its divisors is an integer number (2498824635).

Almost surely, 2^4997649269 is an apocalyptic number.

It is an amenable number.

4997649269 is a deficient number, since it is larger than the sum of its proper divisors (1).

4997649269 is an equidigital number, since it uses as much as digits as its factorization.

4997649269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52907904, while the sum is 65.

The square root of 4997649269 is about 70694.0539861734. The cubic root of 4997649269 is about 1709.7079251047.

The spelling of 4997649269 in words is "four billion, nine hundred ninety-seven million, six hundred forty-nine thousand, two hundred sixty-nine".