18276067236 has 144 divisors (see below), whose sum is σ = 51316941312. Its totient is φ = 5042419200.

The previous prime is 18276067219. The next prime is 18276067247. The reversal of 18276067236 is 63276067281.

It is a super-2 number, since 2×18276067236² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12339616 + ... + 12341096.

It is an arithmetic number, because the mean of its divisors is an integer number (356367648).

Almost surely, 2^18276067236 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 18276067236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25658470656).

18276067236 is an abundant number, since it is smaller than the sum of its proper divisors (33040874076).

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

18276067236 is a wasteful number, since it uses less digits than its factorization.

18276067236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2210 (or 2201 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 18276067236 in words is "eighteen billion, two hundred seventy-six million, sixty-seven thousand, two hundred thirty-six".