16459427317 has 2 divisors, whose sum is σ = 16459427318. Its totient is φ = 16459427316.

The previous prime is 16459427287. The next prime is 16459427321. The reversal of 16459427317 is 71372495461.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13487105956 + 2972321361 = 116134^2 + 54519^2 .

It is an emirp because it is prime and its reverse (71372495461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16459427317 - 2⁷ = 16459427189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16459427377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8229713658 + 8229713659.

It is an arithmetic number, because the mean of its divisors is an integer number (8229713659).

Almost surely, 2^16459427317 is an apocalyptic number.

It is an amenable number.

16459427317 is a deficient number, since it is larger than the sum of its proper divisors (1).

16459427317 is an equidigital number, since it uses as much as digits as its factorization.

16459427317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1270080, while the sum is 49.

The spelling of 16459427317 in words is "sixteen billion, four hundred fifty-nine million, four hundred twenty-seven thousand, three hundred seventeen".