18028276800 has 84 divisors (see below), whose sum is σ = 59147787216. Its totient is φ = 4807539200.

The previous prime is 18028276771. The next prime is 18028276801. The reversal of 18028276800 is 867282081.

It is not an unprimeable number, because it can be changed into a prime (18028276801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1873146 + ... + 1882745.

It is an arithmetic number, because the mean of its divisors is an integer number (704140324).

Almost surely, 2^18028276800 is an apocalyptic number.

18028276800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18028276800 is an abundant number, since it is smaller than the sum of its proper divisors (41119510416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18028276800 is a wasteful number, since it uses less digits than its factorization.

18028276800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755916 (or 3755901 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 18028276800 in words is "eighteen billion, twenty-eight million, two hundred seventy-six thousand, eight hundred".