5109098581 has 2 divisors, whose sum is σ = 5109098582. Its totient is φ = 5109098580.

The previous prime is 5109098563. The next prime is 5109098609. The reversal of 5109098581 is 1858909015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4207597956 + 901500625 = 64866^2 + 30025^2 .

It is a cyclic number.

It is not a de Polignac number, because 5109098581 - 2⁵ = 5109098549 is a prime.

It is a super-2 number, since 2×5109098581² = 52205776620752427122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5109098531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2554549290 + 2554549291.

It is an arithmetic number, because the mean of its divisors is an integer number (2554549291).

Almost surely, 2^5109098581 is an apocalyptic number.

It is an amenable number.

5109098581 is a deficient number, since it is larger than the sum of its proper divisors (1).

5109098581 is an equidigital number, since it uses as much as digits as its factorization.

5109098581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 46.

The square root of 5109098581 is about 71477.9587075624. The cubic root of 5109098581 is about 1722.3236330694.

The spelling of 5109098581 in words is "five billion, one hundred nine million, ninety-eight thousand, five hundred eighty-one".