5117204909 has 2 divisors, whose sum is σ = 5117204910. Its totient is φ = 5117204908.

The previous prime is 5117204899. The next prime is 5117204921. The reversal of 5117204909 is 9094027115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3760387684 + 1356817225 = 61322^2 + 36835^2 .

It is a cyclic number.

It is not a de Polignac number, because 5117204909 - 2¹² = 5117200813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5117224909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2558602454 + 2558602455.

It is an arithmetic number, because the mean of its divisors is an integer number (2558602455).

Almost surely, 2^5117204909 is an apocalyptic number.

It is an amenable number.

5117204909 is a deficient number, since it is larger than the sum of its proper divisors (1).

5117204909 is an equidigital number, since it uses as much as digits as its factorization.

5117204909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 5117204909 is about 71534.6413215304. The cubic root of 5117204909 is about 1723.2340573822.

The spelling of 5117204909 in words is "five billion, one hundred seventeen million, two hundred four thousand, nine hundred nine".