18424042458 has 16 divisors (see below), whose sum is σ = 36855820800. Its totient is φ = 6140058176.

The previous prime is 18424042447. The next prime is 18424042459. The reversal of 18424042458 is 85424042481.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18424042459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291135 + ... + 348722.

It is an arithmetic number, because the mean of its divisors is an integer number (2303488800).

Almost surely, 2^18424042458 is an apocalyptic number.

18424042458 is an abundant number, since it is smaller than the sum of its proper divisors (18431778342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18424042458 is a wasteful number, since it uses less digits than its factorization.

18424042458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644661.

The product of its (nonzero) digits is 327680, while the sum is 42.

The spelling of 18424042458 in words is "eighteen billion, four hundred twenty-four million, forty-two thousand, four hundred fifty-eight".