18032344417 has 2 divisors, whose sum is σ = 18032344418. Its totient is φ = 18032344416.

The previous prime is 18032344411. The next prime is 18032344511. The reversal of 18032344417 is 71444323081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9958243681 + 8074100736 = 99791^2 + 89856^2 .

It is a cyclic number.

It is not a de Polignac number, because 18032344417 - 2³¹ = 15884860769 is a prime.

It is a super-2 number, since 2×18032344417² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18032344411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9016172208 + 9016172209.

It is an arithmetic number, because the mean of its divisors is an integer number (9016172209).

Almost surely, 2^18032344417 is an apocalyptic number.

It is an amenable number.

18032344417 is a deficient number, since it is larger than the sum of its proper divisors (1).

18032344417 is an equidigital number, since it uses as much as digits as its factorization.

18032344417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 37.

Adding to 18032344417 its reverse (71444323081), we get a palindrome (89476667498).

The spelling of 18032344417 in words is "eighteen billion, thirty-two million, three hundred forty-four thousand, four hundred seventeen".