18134210028 has 192 divisors, whose sum is σ = 48120791040. Its totient is φ = 5268441600.

The previous prime is 18134209939. The next prime is 18134210053. The reversal of 18134210028 is 82001243181.

It is a junction number, because it is equal to n+sod(n) for n = 18134209977 and 18134210004.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94943413 + ... + 94943603.

It is an arithmetic number, because the mean of its divisors is an integer number (250629120).

Almost surely, 2^18134210028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18134210028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24060395520).

18134210028 is an abundant number, since it is smaller than the sum of its proper divisors (29986581012).

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

18134210028 is a wasteful number, since it uses less digits than its factorization.

18134210028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The spelling of 18134210028 in words is "eighteen billion, one hundred thirty-four million, two hundred ten thousand, twenty-eight".