18182827292 has 72 divisors (see below), whose sum is σ = 39238368624. Its totient is φ = 7325649408.

The previous prime is 18182827291. The next prime is 18182827321. The reversal of 18182827292 is 29272828181.

It is a self number, because there is not a number n which added to its sum of digits gives 18182827292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18182827291) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3372623 + ... + 3378009.

It is an arithmetic number, because the mean of its divisors is an integer number (544977342).

Almost surely, 2^18182827292 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 18182827292, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19619184312).

18182827292 is an abundant number, since it is smaller than the sum of its proper divisors (21055541332).

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

18182827292 is a wasteful number, since it uses less digits than its factorization.

18182827292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435 (or 6426 counting only the distinct ones).

The product of its digits is 516096, while the sum is 50.

The spelling of 18182827292 in words is "eighteen billion, one hundred eighty-two million, eight hundred twenty-seven thousand, two hundred ninety-two".