2558791867 has 2 divisors, whose sum is σ = 2558791868. Its totient is φ = 2558791866.

The previous prime is 2558791853. The next prime is 2558791871. The reversal of 2558791867 is 7681978552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2558791867 is a prime.

It is not a weakly prime, because it can be changed into another prime (2558791847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1279395933 + 1279395934.

It is an arithmetic number, because the mean of its divisors is an integer number (1279395934).

Almost surely, 2^2558791867 is an apocalyptic number.

2558791867 is a deficient number, since it is larger than the sum of its proper divisors (1).

2558791867 is an equidigital number, since it uses as much as digits as its factorization.

2558791867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8467200, while the sum is 58.

The square root of 2558791867 is about 50584.5022412992. The cubic root of 2558791867 is about 1367.7655278167.

The spelling of 2558791867 in words is "two billion, five hundred fifty-eight million, seven hundred ninety-one thousand, eight hundred sixty-seven".