5108390909 has 2 divisors, whose sum is σ = 5108390910. Its totient is φ = 5108390908.

The previous prime is 5108390801. The next prime is 5108390929. The reversal of 5108390909 is 9090938015.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3946603684 + 1161787225 = 62822^2 + 34085^2 .

It is a cyclic number.

It is not a de Polignac number, because 5108390909 - 2⁸ = 5108390653 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 5108390909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5108390929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2554195454 + 2554195455.

It is an arithmetic number, because the mean of its divisors is an integer number (2554195455).

Almost surely, 2^5108390909 is an apocalyptic number.

It is an amenable number.

5108390909 is a deficient number, since it is larger than the sum of its proper divisors (1).

5108390909 is an equidigital number, since it uses as much as digits as its factorization.

5108390909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 5108390909 is about 71473.0082548650. The cubic root of 5108390909 is about 1722.2441085068.

The spelling of 5108390909 in words is "five billion, one hundred eight million, three hundred ninety thousand, nine hundred nine".