18442068407 has 6 divisors (see below), whose sum is σ = 21453018408. Its totient is φ = 15807487164.

The previous prime is 18442068383. The next prime is 18442068413. The reversal of 18442068407 is 70486024481.

It is not a de Polignac number, because 18442068407 - 2²⁶ = 18374959543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18442068457) 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 in 5 ways as a sum of consecutive naturals, for example, 188184323 + ... + 188184420.

It is an arithmetic number, because the mean of its divisors is an integer number (3575503068).

Almost surely, 2^18442068407 is an apocalyptic number.

18442068407 is a deficient number, since it is larger than the sum of its proper divisors (3010950001).

18442068407 is an equidigital number, since it uses as much as digits as its factorization.

18442068407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376368757 (or 376368750 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 44.

The spelling of 18442068407 in words is "eighteen billion, four hundred forty-two million, sixty-eight thousand, four hundred seven".