22780078200 has 576 divisors, whose sum is σ = 90997747200. Its totient is φ = 5193676800.

The previous prime is 22780078171. The next prime is 22780078201. The reversal of 22780078200 is 287008722.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22780078201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 17165937 + ... + 17167263.

It is an arithmetic number, because the mean of its divisors is an integer number (157982200).

Almost surely, 2^22780078200 is an apocalyptic number.

22780078200 is a gapful number since it is divisible by the number (20) 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 22780078200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45498873600).

22780078200 is an abundant number, since it is smaller than the sum of its proper divisors (68217669000).

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

22780078200 is a wasteful number, since it uses less digits than its factorization.

22780078200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The spelling of 22780078200 in words is "twenty-two billion, seven hundred eighty million, seventy-eight thousand, two hundred".