18051228000 has 1152 divisors, whose sum is σ = 75969653760. Its totient is φ = 4151347200.

The previous prime is 18051227983. The next prime is 18051228059. The reversal of 18051228000 is 82215081.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 419795979 + ... + 419796021.

It is an arithmetic number, because the mean of its divisors is an integer number (65945880).

Almost surely, 2^18051228000 is an apocalyptic number.

18051228000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18051228000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37984826880).

18051228000 is an abundant number, since it is smaller than the sum of its proper divisors (57918425760).

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

18051228000 is a wasteful number, since it uses less digits than its factorization.

18051228000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

It can be divided in two parts, 18051 and 228000, that added together give a triangular number (246051 = T₇₀₁).

The spelling of 18051228000 in words is "eighteen billion, fifty-one million, two hundred twenty-eight thousand".