17094138521 has 2 divisors, whose sum is σ = 17094138522. Its totient is φ = 17094138520.

The previous prime is 17094138461. The next prime is 17094138527. The reversal of 17094138521 is 12583149071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15222624400 + 1871514121 = 123380^2 + 43261^2 .

It is a cyclic number.

It is not a de Polignac number, because 17094138521 - 2²² = 17089944217 is a prime.

It is not a weakly prime, because it can be changed into another prime (17094138527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8547069260 + 8547069261.

It is an arithmetic number, because the mean of its divisors is an integer number (8547069261).

Almost surely, 2^17094138521 is an apocalyptic number.

It is an amenable number.

17094138521 is a deficient number, since it is larger than the sum of its proper divisors (1).

17094138521 is an equidigital number, since it uses as much as digits as its factorization.

17094138521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 17094138521 in words is "seventeen billion, ninety-four million, one hundred thirty-eight thousand, five hundred twenty-one".