18032490017 has 2 divisors, whose sum is σ = 18032490018. Its totient is φ = 18032490016.

The previous prime is 18032490001. The next prime is 18032490137. The reversal of 18032490017 is 71009423081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16454732176 + 1577757841 = 128276^2 + 39721^2 .

It is a cyclic number.

It is not a de Polignac number, because 18032490017 - 2⁴ = 18032490001 is a prime.

It is not a weakly prime, because it can be changed into another prime (18032450017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9016245008 + 9016245009.

It is an arithmetic number, because the mean of its divisors is an integer number (9016245009).

Almost surely, 2^18032490017 is an apocalyptic number.

It is an amenable number.

18032490017 is a deficient number, since it is larger than the sum of its proper divisors (1).

18032490017 is an equidigital number, since it uses as much as digits as its factorization.

18032490017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The spelling of 18032490017 in words is "eighteen billion, thirty-two million, four hundred ninety thousand, seventeen".