2479638431 has 2 divisors, whose sum is σ = 2479638432. Its totient is φ = 2479638430.

The previous prime is 2479638397. The next prime is 2479638433. The reversal of 2479638431 is 1348369742.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2479638431 is a prime.

It is a super-2 number, since 2×2479638431² = 12297213496984283522, which contains 22 as substring.

Together with 2479638433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2479638433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1239819215 + 1239819216.

It is an arithmetic number, because the mean of its divisors is an integer number (1239819216).

Almost surely, 2^2479638431 is an apocalyptic number.

2479638431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2479638431 is an equidigital number, since it uses as much as digits as its factorization.

2479638431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 47.

The square root of 2479638431 is about 49795.9680195094. The cubic root of 2479638431 is about 1353.5141059706.

The spelling of 2479638431 in words is "two billion, four hundred seventy-nine million, six hundred thirty-eight thousand, four hundred thirty-one".