18454091065 has 8 divisors (see below), whose sum is σ = 22475430720. Its totient is φ = 14542925232.

The previous prime is 18454091059. The next prime is 18454091081. The reversal of 18454091065 is 56019045481.

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 18454091065 - 2³ = 18454091057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27543085 + ... + 27543754.

It is an arithmetic number, because the mean of its divisors is an integer number (2809428840).

Almost surely, 2^18454091065 is an apocalyptic number.

It is an amenable number.

18454091065 is a deficient number, since it is larger than the sum of its proper divisors (4021339655).

18454091065 is an equidigital number, since it uses as much as digits as its factorization.

18454091065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55086911.

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 18454091065 in words is "eighteen billion, four hundred fifty-four million, ninety-one thousand, sixty-five".