11518498349 has 2 divisors, whose sum is σ = 11518498350. Its totient is φ = 11518498348.

The previous prime is 11518498289. The next prime is 11518498361. The reversal of 11518498349 is 94389481511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6089461225 + 5429037124 = 78035^2 + 73682^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11518498349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11518498349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11518498399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5759249174 + 5759249175.

It is an arithmetic number, because the mean of its divisors is an integer number (5759249175).

Almost surely, 2^11518498349 is an apocalyptic number.

It is an amenable number.

11518498349 is a deficient number, since it is larger than the sum of its proper divisors (1).

11518498349 is an equidigital number, since it uses as much as digits as its factorization.

11518498349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 53.

The spelling of 11518498349 in words is "eleven billion, five hundred eighteen million, four hundred ninety-eight thousand, three hundred forty-nine".