2636398231 has 2 divisors, whose sum is σ = 2636398232. Its totient is φ = 2636398230.

The previous prime is 2636398189. The next prime is 2636398243. The reversal of 2636398231 is 1328936362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2636398231 - 2¹⁹ = 2635873943 is a prime.

It is a super-2 number, since 2×2636398231² = 13901191264839858722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2636398291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1318199115 + 1318199116.

It is an arithmetic number, because the mean of its divisors is an integer number (1318199116).

Almost surely, 2^2636398231 is an apocalyptic number.

2636398231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2636398231 is an equidigital number, since it uses as much as digits as its factorization.

2636398231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 43.

The square root of 2636398231 is about 51345.8686848319. The cubic root of 2636398231 is about 1381.4558309559.

The spelling of 2636398231 in words is "two billion, six hundred thirty-six million, three hundred ninety-eight thousand, two hundred thirty-one".