13946314909 has 2 divisors, whose sum is σ = 13946314910. Its totient is φ = 13946314908.

The previous prime is 13946314897. The next prime is 13946314931. The reversal of 13946314909 is 90941364931.

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., 11957422500 + 1988892409 = 109350^2 + 44597^2 .

It is a cyclic number.

It is not a de Polignac number, because 13946314909 - 2²⁷ = 13812097181 is a prime.

It is a super-3 number, since 3×13946314909³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13946314979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6973157454 + 6973157455.

It is an arithmetic number, because the mean of its divisors is an integer number (6973157455).

Almost surely, 2^13946314909 is an apocalyptic number.

It is an amenable number.

13946314909 is a deficient number, since it is larger than the sum of its proper divisors (1).

13946314909 is an equidigital number, since it uses as much as digits as its factorization.

13946314909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 629856, while the sum is 49.

The spelling of 13946314909 in words is "thirteen billion, nine hundred forty-six million, three hundred fourteen thousand, nine hundred nine".