18226434745 has 8 divisors (see below), whose sum is σ = 21872975040. Its totient is φ = 14580312240.

The previous prime is 18226434719. The next prime is 18226434761. The reversal of 18226434745 is 54743462281.

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

It is not a de Polignac number, because 18226434745 - 2¹⁷ = 18226303673 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18226434695 and 18226434704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1260 + ... + 190930.

It is an arithmetic number, because the mean of its divisors is an integer number (2734121880).

Almost surely, 2^18226434745 is an apocalyptic number.

It is an amenable number.

18226434745 is a deficient number, since it is larger than the sum of its proper divisors (3646540295).

18226434745 is a wasteful number, since it uses less digits than its factorization.

18226434745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208895.

The product of its digits is 1290240, while the sum is 46.

The spelling of 18226434745 in words is "eighteen billion, two hundred twenty-six million, four hundred thirty-four thousand, seven hundred forty-five".