5195817911 has 2 divisors, whose sum is σ = 5195817912. Its totient is φ = 5195817910.

The previous prime is 5195817883. The next prime is 5195817929. The reversal of 5195817911 is 1197185915.

It is a happy number.

5195817911 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5195817911 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5195817511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2597908955 + 2597908956.

It is an arithmetic number, because the mean of its divisors is an integer number (2597908956).

Almost surely, 2^5195817911 is an apocalyptic number.

5195817911 is a deficient number, since it is larger than the sum of its proper divisors (1).

5195817911 is an equidigital number, since it uses as much as digits as its factorization.

5195817911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 47.

The square root of 5195817911 is about 72082.0221067639. The cubic root of 5195817911 is about 1732.0136388039.

The spelling of 5195817911 in words is "five billion, one hundred ninety-five million, eight hundred seventeen thousand, nine hundred eleven".