13986846749 has 2 divisors, whose sum is σ = 13986846750. Its totient is φ = 13986846748.

The previous prime is 13986846673. The next prime is 13986846763. The reversal of 13986846749 is 94764868931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13588564900 + 398281849 = 116570^2 + 19957^2 .

It is a cyclic number.

It is not a de Polignac number, because 13986846749 - 2⁸ = 13986846493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13986836749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6993423374 + 6993423375.

It is an arithmetic number, because the mean of its divisors is an integer number (6993423375).

Almost surely, 2^13986846749 is an apocalyptic number.

It is an amenable number.

13986846749 is a deficient number, since it is larger than the sum of its proper divisors (1).

13986846749 is an equidigital number, since it uses as much as digits as its factorization.

13986846749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62705664, while the sum is 65.

The spelling of 13986846749 in words is "thirteen billion, nine hundred eighty-six million, eight hundred forty-six thousand, seven hundred forty-nine".