18272838276 has 240 divisors, whose sum is σ = 61479677952. Its totient is φ = 4592894400.

The previous prime is 18272838247. The next prime is 18272838281. The reversal of 18272838276 is 67283827281.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 761575 + ... + 785201.

Almost surely, 2^18272838276 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 18272838276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30739838976).

18272838276 is an abundant number, since it is smaller than the sum of its proper divisors (43206839676).

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

18272838276 is a wasteful number, since it uses less digits than its factorization.

18272838276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23692 (or 23681 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The spelling of 18272838276 in words is "eighteen billion, two hundred seventy-two million, eight hundred thirty-eight thousand, two hundred seventy-six".