2180793888 has 192 divisors, whose sum is σ = 7828773120. Its totient is φ = 575133696.

The previous prime is 2180793887. The next prime is 2180793907. The reversal of 2180793888 is 8883970812.

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

It is not an unprimeable number, because it can be changed into a prime (2180793883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64756 + ... + 92492.

It is an arithmetic number, because the mean of its divisors is an integer number (40774860).

Almost surely, 2^2180793888 is an apocalyptic number.

2180793888 is a gapful number since it is divisible by the number (28) 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 2180793888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3914386560).

2180793888 is an abundant number, since it is smaller than the sum of its proper divisors (5647979232).

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

2180793888 is a wasteful number, since it uses less digits than its factorization.

2180793888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27776 (or 27762 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The square root of 2180793888 is about 46698.9709522598. The cubic root of 2180793888 is about 1296.7956362740.

The spelling of 2180793888 in words is "two billion, one hundred eighty million, seven hundred ninety-three thousand, eight hundred eighty-eight".