18434093945 has 8 divisors (see below), whose sum is σ = 22155973440. Its totient is φ = 14723901360.

The previous prime is 18434093917. The next prime is 18434093947. The reversal of 18434093945 is 54939043481.

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

It is not a de Polignac number, because 18434093945 - 2²⁶ = 18366985081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18434093893 and 18434093902.

It is not an unprimeable number, because it can be changed into a prime (18434093947) 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, 2918255 + ... + 2924564.

It is an arithmetic number, because the mean of its divisors is an integer number (2769496680).

Almost surely, 2^18434093945 is an apocalyptic number.

It is an amenable number.

18434093945 is a deficient number, since it is larger than the sum of its proper divisors (3721879495).

18434093945 is an equidigital number, since it uses as much as digits as its factorization.

18434093945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843455.

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 18434093945 in words is "eighteen billion, four hundred thirty-four million, ninety-three thousand, nine hundred forty-five".