5017919509 has 2 divisors, whose sum is σ = 5017919510. Its totient is φ = 5017919508.

The previous prime is 5017919381. The next prime is 5017919527. The reversal of 5017919509 is 9059197105.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5002732900 + 15186609 = 70730^2 + 3897^2 .

It is a cyclic number.

It is not a de Polignac number, because 5017919509 - 2⁷ = 5017919381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5017919579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2508959754 + 2508959755.

It is an arithmetic number, because the mean of its divisors is an integer number (2508959755).

Almost surely, 2^5017919509 is an apocalyptic number.

It is an amenable number.

5017919509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5017919509 is an equidigital number, since it uses as much as digits as its factorization.

5017919509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127575, while the sum is 46.

The square root of 5017919509 is about 70837.2748558271. The cubic root of 5017919509 is about 1712.0163064226.

The spelling of 5017919509 in words is "five billion, seventeen million, nine hundred nineteen thousand, five hundred nine".