5172104891 has 2 divisors, whose sum is σ = 5172104892. Its totient is φ = 5172104890.

The previous prime is 5172104879. The next prime is 5172104897. The reversal of 5172104891 is 1984012715.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5172104891 is a prime.

It is a super-2 number, since 2×5172104891² = 53501338007012243762, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (5172104897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2586052445 + 2586052446.

It is an arithmetic number, because the mean of its divisors is an integer number (2586052446).

Almost surely, 2^5172104891 is an apocalyptic number.

5172104891 is a deficient number, since it is larger than the sum of its proper divisors (1).

5172104891 is an equidigital number, since it uses as much as digits as its factorization.

5172104891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 5172104891 is about 71917.3476360189. The cubic root of 5172104891 is about 1729.3747270908.

The spelling of 5172104891 in words is "five billion, one hundred seventy-two million, one hundred four thousand, eight hundred ninety-one".