18358425017 has 2 divisors, whose sum is σ = 18358425018. Its totient is φ = 18358425016.

The previous prime is 18358425011. The next prime is 18358425023. The reversal of 18358425017 is 71052485381.

It is a balanced prime because it is at equal distance from previous prime (18358425011) and next prime (18358425023).

It can be written as a sum of positive squares in only one way, i.e., 17707358761 + 651066256 = 133069^2 + 25516^2 .

It is a cyclic number.

It is not a de Polignac number, because 18358425017 - 2⁸ = 18358424761 is a prime.

It is a super-2 number, since 2×18358425017² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18358425011) 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, 9179212508 + 9179212509.

It is an arithmetic number, because the mean of its divisors is an integer number (9179212509).

Almost surely, 2^18358425017 is an apocalyptic number.

It is an amenable number.

18358425017 is a deficient number, since it is larger than the sum of its proper divisors (1).

18358425017 is an equidigital number, since it uses as much as digits as its factorization.

18358425017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 268800, while the sum is 44.

The spelling of 18358425017 in words is "eighteen billion, three hundred fifty-eight million, four hundred twenty-five thousand, seventeen".