15117966349 has 2 divisors, whose sum is σ = 15117966350. Its totient is φ = 15117966348.

The previous prime is 15117966343. The next prime is 15117966361. The reversal of 15117966349 is 94366971151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11296501225 + 3821465124 = 106285^2 + 61818^2 .

It is a cyclic number.

It is not a de Polignac number, because 15117966349 - 2¹⁵ = 15117933581 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15117966296 and 15117966305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15117966343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7558983174 + 7558983175.

It is an arithmetic number, because the mean of its divisors is an integer number (7558983175).

Almost surely, 2^15117966349 is an apocalyptic number.

It is an amenable number.

15117966349 is a deficient number, since it is larger than the sum of its proper divisors (1).

15117966349 is an equidigital number, since it uses as much as digits as its factorization.

15117966349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 52.

The spelling of 15117966349 in words is "fifteen billion, one hundred seventeen million, nine hundred sixty-six thousand, three hundred forty-nine".