5115216442409 has 2 divisors, whose sum is σ = 5115216442410. Its totient is φ = 5115216442408.

The previous prime is 5115216442387. The next prime is 5115216442477. The reversal of 5115216442409 is 9042446125115.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5033404425625 + 81812016784 = 2243525^2 + 286028^2 .

It is a cyclic number.

It is not a de Polignac number, because 5115216442409 - 2⁸ = 5115216442153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5115216442409.

It is not a weakly prime, because it can be changed into another prime (5115216442109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2557608221204 + 2557608221205.

It is an arithmetic number, because the mean of its divisors is an integer number (2557608221205).

Almost surely, 2^{5115216442409} is an apocalyptic number.

It is an amenable number.

5115216442409 is a deficient number, since it is larger than the sum of its proper divisors (1).

5115216442409 is an equidigital number, since it uses as much as digits as its factorization.

5115216442409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 5115216442409 in words is "five trillion, one hundred fifteen billion, two hundred sixteen million, four hundred forty-two thousand, four hundred nine".