11515336249 has 2 divisors, whose sum is σ = 11515336250. Its totient is φ = 11515336248.

The previous prime is 11515336199. The next prime is 11515336351. The reversal of 11515336249 is 94263351511.

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., 6521370025 + 4993966224 = 80755^2 + 70668^2 .

It is a cyclic number.

It is not a de Polignac number, because 11515336249 - 2²¹ = 11513239097 is a prime.

It is not a weakly prime, because it can be changed into another prime (11515336949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5757668124 + 5757668125.

It is an arithmetic number, because the mean of its divisors is an integer number (5757668125).

Almost surely, 2^11515336249 is an apocalyptic number.

It is an amenable number.

11515336249 is a deficient number, since it is larger than the sum of its proper divisors (1).

11515336249 is an equidigital number, since it uses as much as digits as its factorization.

11515336249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 97200, while the sum is 40.

The spelling of 11515336249 in words is "eleven billion, five hundred fifteen million, three hundred thirty-six thousand, two hundred forty-nine".