28346200000 has 84 divisors (see below), whose sum is σ = 70307859384. Its totient is φ = 11338400000.

The previous prime is 28346199989. The next prime is 28346200007. The reversal of 28346200000 is 264382.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28346200007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129135 + ... + 270865.

It is an arithmetic number, because the mean of its divisors is an integer number (836998326).

Almost surely, 2^28346200000 is an apocalyptic number.

28346200000 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 28346200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35153929692).

28346200000 is an abundant number, since it is smaller than the sum of its proper divisors (41961659384).

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

28346200000 is an frugal number, since it uses more digits than its factorization.

28346200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141768 (or 141738 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 28346200000 its reverse (264382), we get a palindrome (28346464382).

The spelling of 28346200000 in words is "twenty-eight billion, three hundred forty-six million, two hundred thousand".