18454387282999 has 2 divisors, whose sum is σ = 18454387283000. Its totient is φ = 18454387282998.

The previous prime is 18454387282939. The next prime is 18454387283021. The reversal of 18454387282999 is 99928278345481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18454387282999 - 2³⁷ = 18316948329527 is a prime.

It is a super-3 number, since 3×18454387282999³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18454387282909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9227193641499 + 9227193641500.

It is an arithmetic number, because the mean of its divisors is an integer number (9227193641500).

Almost surely, 2^{18454387282999} is an apocalyptic number.

18454387282999 is a deficient number, since it is larger than the sum of its proper divisors (1).

18454387282999 is an equidigital number, since it uses as much as digits as its factorization.

18454387282999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2508226560, while the sum is 79.

The spelling of 18454387282999 in words is "eighteen trillion, four hundred fifty-four billion, three hundred eighty-seven million, two hundred eighty-two thousand, nine hundred ninety-nine".