2590371691 has 2 divisors, whose sum is σ = 2590371692. Its totient is φ = 2590371690.

The previous prime is 2590371689. The next prime is 2590371697. The reversal of 2590371691 is 1961730952.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2590371691 - 2¹ = 2590371689 is a prime.

Together with 2590371689, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2590371697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1295185845 + 1295185846.

It is an arithmetic number, because the mean of its divisors is an integer number (1295185846).

Almost surely, 2^2590371691 is an apocalyptic number.

2590371691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2590371691 is an equidigital number, since it uses as much as digits as its factorization.

2590371691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 2590371691 is about 50895.6942284905. The cubic root of 2590371691 is about 1373.3693844353.

The spelling of 2590371691 in words is "two billion, five hundred ninety million, three hundred seventy-one thousand, six hundred ninety-one".