2639030269 has 2 divisors, whose sum is σ = 2639030270. Its totient is φ = 2639030268.

The previous prime is 2639030267. The next prime is 2639030333. The reversal of 2639030269 is 9620309362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1959124644 + 679905625 = 44262^2 + 26075^2 .

It is a cyclic number.

It is not a de Polignac number, because 2639030269 - 2¹ = 2639030267 is a prime.

It is a super-2 number, since 2×2639030269² = 13928961521396424722, which contains 22 as substring.

Together with 2639030267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2639030263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1319515134 + 1319515135.

It is an arithmetic number, because the mean of its divisors is an integer number (1319515135).

Almost surely, 2^2639030269 is an apocalyptic number.

It is an amenable number.

2639030269 is a deficient number, since it is larger than the sum of its proper divisors (1).

2639030269 is an equidigital number, since it uses as much as digits as its factorization.

2639030269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 40.

The square root of 2639030269 is about 51371.4927659300. The cubic root of 2639030269 is about 1381.9154017522.

The spelling of 2639030269 in words is "two billion, six hundred thirty-nine million, thirty thousand, two hundred sixty-nine".