18051128863 has 4 divisors (see below), whose sum is σ = 18055473280. Its totient is φ = 18046784448.

The previous prime is 18051128857. The next prime is 18051128867. The reversal of 18051128863 is 36882115081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36882115081 = 7 ⋅5268873583.

It is a cyclic number.

It is not a de Polignac number, because 18051128863 - 2⁵ = 18051128831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18051128867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2165970 + ... + 2174287.

It is an arithmetic number, because the mean of its divisors is an integer number (4513868320).

Almost surely, 2^18051128863 is an apocalyptic number.

18051128863 is a deficient number, since it is larger than the sum of its proper divisors (4344417).

18051128863 is an equidigital number, since it uses as much as digits as its factorization.

18051128863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344416.

The product of its (nonzero) digits is 92160, while the sum is 43.

The spelling of 18051128863 in words is "eighteen billion, fifty-one million, one hundred twenty-eight thousand, eight hundred sixty-three".