13946310881 has 2 divisors, whose sum is σ = 13946310882. Its totient is φ = 13946310880.

The previous prime is 13946310863. The next prime is 13946310883. The reversal of 13946310881 is 18801364931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8026547281 + 5919763600 = 89591^2 + 76940^2 .

It is a cyclic number.

It is not a de Polignac number, because 13946310881 - 2¹⁰ = 13946309857 is a prime.

It is a super-2 number, since 2×13946310881² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 13946310883, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13946310883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6973155440 + 6973155441.

It is an arithmetic number, because the mean of its divisors is an integer number (6973155441).

Almost surely, 2^13946310881 is an apocalyptic number.

It is an amenable number.

13946310881 is a deficient number, since it is larger than the sum of its proper divisors (1).

13946310881 is an equidigital number, since it uses as much as digits as its factorization.

13946310881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 44.

The spelling of 13946310881 in words is "thirteen billion, nine hundred forty-six million, three hundred ten thousand, eight hundred eighty-one".