8591358491 has 2 divisors, whose sum is σ = 8591358492. Its totient is φ = 8591358490.

The previous prime is 8591358487. The next prime is 8591358533. The reversal of 8591358491 is 1948531958.

It is a happy number.

8591358491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8591358491 - 2² = 8591358487 is a prime.

It is a super-2 number, since 2×8591358491² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8591351491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4295679245 + 4295679246.

It is an arithmetic number, because the mean of its divisors is an integer number (4295679246).

Almost surely, 2^8591358491 is an apocalyptic number.

8591358491 is a deficient number, since it is larger than the sum of its proper divisors (1).

8591358491 is an equidigital number, since it uses as much as digits as its factorization.

8591358491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1555200, while the sum is 53.

The square root of 8591358491 is about 92689.5813508724. The cubic root of 8591358491 is about 2048.1131550734.

The spelling of 8591358491 in words is "eight billion, five hundred ninety-one million, three hundred fifty-eight thousand, four hundred ninety-one".