5115681899 has 2 divisors, whose sum is σ = 5115681900. Its totient is φ = 5115681898.

The previous prime is 5115681863. The next prime is 5115681911. The reversal of 5115681899 is 9981865115.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5115681899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5115681899.

It is not a weakly prime, because it can be changed into another prime (5115681829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2557840949 + 2557840950.

It is an arithmetic number, because the mean of its divisors is an integer number (2557840950).

Almost surely, 2^5115681899 is an apocalyptic number.

5115681899 is a deficient number, since it is larger than the sum of its proper divisors (1).

5115681899 is an equidigital number, since it uses as much as digits as its factorization.

5115681899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 53.

The square root of 5115681899 is about 71523.9952673227. The cubic root of 5115681899 is about 1723.0630810280.

The spelling of 5115681899 in words is "five billion, one hundred fifteen million, six hundred eighty-one thousand, eight hundred ninety-nine".