18454244371 has 8 divisors (see below), whose sum is σ = 18488093184. Its totient is φ = 18420428040.

The previous prime is 18454244351. The next prime is 18454244387. The reversal of 18454244371 is 17344245481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18454244371 - 2²⁵ = 18420689939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18454244351) 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, 1320406 + ... + 1334308.

It is an arithmetic number, because the mean of its divisors is an integer number (2311011648).

Almost surely, 2^18454244371 is an apocalyptic number.

18454244371 is a deficient number, since it is larger than the sum of its proper divisors (33848813).

18454244371 is a wasteful number, since it uses less digits than its factorization.

18454244371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16241.

The product of its digits is 430080, while the sum is 43.

The spelling of 18454244371 in words is "eighteen billion, four hundred fifty-four million, two hundred forty-four thousand, three hundred seventy-one".