18458395814 has 16 divisors (see below), whose sum is σ = 27821510640. Its totient is φ = 9184611840.

The previous prime is 18458395811. The next prime is 18458395819. The reversal of 18458395814 is 41859385481.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18458395814.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18458395811) 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, 736217 + ... + 760875.

It is an arithmetic number, because the mean of its divisors is an integer number (1738844415).

Almost surely, 2^18458395814 is an apocalyptic number.

18458395814 is a deficient number, since it is larger than the sum of its proper divisors (9363114826).

18458395814 is a wasteful number, since it uses less digits than its factorization.

18458395814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26455.

The product of its digits is 5529600, while the sum is 56.

The spelling of 18458395814 in words is "eighteen billion, four hundred fifty-eight million, three hundred ninety-five thousand, eight hundred fourteen".