2638915271 has 2 divisors, whose sum is σ = 2638915272. Its totient is φ = 2638915270.

The previous prime is 2638915261. The next prime is 2638915277. The reversal of 2638915271 is 1725198362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2638915271 - 2¹⁴ = 2638898887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2638915277) 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, 1319457635 + 1319457636.

It is an arithmetic number, because the mean of its divisors is an integer number (1319457636).

Almost surely, 2^2638915271 is an apocalyptic number.

2638915271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2638915271 is an equidigital number, since it uses as much as digits as its factorization.

2638915271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 2638915271 is about 51370.3734753798. The cubic root of 2638915271 is about 1381.8953287456.

The spelling of 2638915271 in words is "two billion, six hundred thirty-eight million, nine hundred fifteen thousand, two hundred seventy-one".