13316374249 has 2 divisors, whose sum is σ = 13316374250. Its totient is φ = 13316374248.

The previous prime is 13316374223. The next prime is 13316374271. The reversal of 13316374249 is 94247361331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13312544400 + 3829849 = 115380^2 + 1957^2 .

It is a cyclic number.

It is not a de Polignac number, because 13316374249 - 2⁷ = 13316374121 is a prime.

It is not a weakly prime, because it can be changed into another prime (13316674249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6658187124 + 6658187125.

It is an arithmetic number, because the mean of its divisors is an integer number (6658187125).

Almost surely, 2^13316374249 is an apocalyptic number.

It is an amenable number.

13316374249 is a deficient number, since it is larger than the sum of its proper divisors (1).

13316374249 is an equidigital number, since it uses as much as digits as its factorization.

13316374249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 43.

The spelling of 13316374249 in words is "thirteen billion, three hundred sixteen million, three hundred seventy-four thousand, two hundred forty-nine".