18708034454 has 4 divisors (see below), whose sum is σ = 28062051684. Its totient is φ = 9354017226.

The previous prime is 18708034439. The next prime is 18708034481. The reversal of 18708034454 is 45443080781.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 4677008612 + ... + 4677008615.

It is an arithmetic number, because the mean of its divisors is an integer number (7015512921).

Almost surely, 2^18708034454 is an apocalyptic number.

18708034454 is a deficient number, since it is larger than the sum of its proper divisors (9354017230).

18708034454 is an equidigital number, since it uses as much as digits as its factorization.

18708034454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9354017229.

The product of its (nonzero) digits is 430080, while the sum is 44.

The spelling of 18708034454 in words is "eighteen billion, seven hundred eight million, thirty-four thousand, four hundred fifty-four".