17314086721 has 2 divisors, whose sum is σ = 17314086722. Its totient is φ = 17314086720.

The previous prime is 17314086719. The next prime is 17314086787. The reversal of 17314086721 is 12768041371.

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., 17313296400 + 790321 = 131580^2 + 889^2 .

It is a cyclic number.

It is not a de Polignac number, because 17314086721 - 2¹ = 17314086719 is a prime.

Together with 17314086719, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (17314086421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8657043360 + 8657043361.

It is an arithmetic number, because the mean of its divisors is an integer number (8657043361).

Almost surely, 2^17314086721 is an apocalyptic number.

It is an amenable number.

17314086721 is a deficient number, since it is larger than the sum of its proper divisors (1).

17314086721 is an equidigital number, since it uses as much as digits as its factorization.

17314086721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56448, while the sum is 40.

The spelling of 17314086721 in words is "seventeen billion, three hundred fourteen million, eighty-six thousand, seven hundred twenty-one".