13746674681 has 2 divisors, whose sum is σ = 13746674682. Its totient is φ = 13746674680.

The previous prime is 13746674677. The next prime is 13746674693. The reversal of 13746674681 is 18647664731.

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., 8603490025 + 5143184656 = 92755^2 + 71716^2 .

It is a cyclic number.

It is not a de Polignac number, because 13746674681 - 2² = 13746674677 is a prime.

It is a super-2 number, since 2×13746674681² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13746674881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6873337340 + 6873337341.

It is an arithmetic number, because the mean of its divisors is an integer number (6873337341).

Almost surely, 2^13746674681 is an apocalyptic number.

It is an amenable number.

13746674681 is a deficient number, since it is larger than the sum of its proper divisors (1).

13746674681 is an equidigital number, since it uses as much as digits as its factorization.

13746674681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 53.

The spelling of 13746674681 in words is "thirteen billion, seven hundred forty-six million, six hundred seventy-four thousand, six hundred eighty-one".