18450122382404 has 72 divisors (see below), whose sum is σ = 34392232725480. Its totient is φ = 8630592602112.

The previous prime is 18450122382389. The next prime is 18450122382457. The reversal of 18450122382404 is 40428322105481.

It can be written as a sum of positive squares in 12 ways, for example, as 7839988800004 + 10610133582400 = 2799998^2 + 3257320^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4744179692 + ... + 4744183580.

It is an arithmetic number, because the mean of its divisors is an integer number (477669898965).

Almost surely, 2^{18450122382404} is an apocalyptic number.

It is an amenable number.

18450122382404 is a deficient number, since it is larger than the sum of its proper divisors (15942110343076).

18450122382404 is a wasteful number, since it uses less digits than its factorization.

18450122382404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6169 (or 5974 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 44.

Adding to 18450122382404 its reverse (40428322105481), we get a palindrome (58878444487885).

The spelling of 18450122382404 in words is "eighteen trillion, four hundred fifty billion, one hundred twenty-two million, three hundred eighty-two thousand, four hundred four".