5091000917 has 2 divisors, whose sum is σ = 5091000918. Its totient is φ = 5091000916.

The previous prime is 5091000857. The next prime is 5091000983. The reversal of 5091000917 is 7190001905.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3409508881 + 1681492036 = 58391^2 + 41006^2 .

It is a cyclic number.

It is not a de Polignac number, because 5091000917 - 2⁶ = 5091000853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5091000617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2545500458 + 2545500459.

It is an arithmetic number, because the mean of its divisors is an integer number (2545500459).

Almost surely, 2^5091000917 is an apocalyptic number.

It is an amenable number.

5091000917 is a deficient number, since it is larger than the sum of its proper divisors (1).

5091000917 is an equidigital number, since it uses as much as digits as its factorization.

5091000917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 5091000917 is about 71351.2502833692. The cubic root of 5091000917 is about 1720.2875980461.

The spelling of 5091000917 in words is "five billion, ninety-one million, nine hundred seventeen", and thus it is an aban number.