18876027720 has 256 divisors, whose sum is σ = 65330012160. Its totient is φ = 4320000000.

The previous prime is 18876027683. The next prime is 18876027721. The reversal of 18876027720 is 2772067881.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 18876027720.

It is not an unprimeable number, because it can be changed into a prime (18876027721) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1672095 + ... + 1683345.

It is an arithmetic number, because the mean of its divisors is an integer number (255195360).

Almost surely, 2^18876027720 is an apocalyptic number.

18876027720 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 18876027720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32665006080).

18876027720 is an abundant number, since it is smaller than the sum of its proper divisors (46453984440).

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

18876027720 is a wasteful number, since it uses less digits than its factorization.

18876027720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11348 (or 11344 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 48.

The spelling of 18876027720 in words is "eighteen billion, eight hundred seventy-six million, twenty-seven thousand, seven hundred twenty".