17313994127 has 2 divisors, whose sum is σ = 17313994128. Its totient is φ = 17313994126.

The previous prime is 17313994043. The next prime is 17313994153. The reversal of 17313994127 is 72149931371.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17313994127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17313994927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8656997063 + 8656997064.

It is an arithmetic number, because the mean of its divisors is an integer number (8656997064).

Almost surely, 2^17313994127 is an apocalyptic number.

17313994127 is a deficient number, since it is larger than the sum of its proper divisors (1).

17313994127 is an equidigital number, since it uses as much as digits as its factorization.

17313994127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 47.

The spelling of 17313994127 in words is "seventeen billion, three hundred thirteen million, nine hundred ninety-four thousand, one hundred twenty-seven".