28963440000 has 1280 divisors, whose sum is σ = 123890342400. Its totient is φ = 6589440000.

The previous prime is 28963439993. The next prime is 28963440007. The reversal of 28963440000 is 4436982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28963439993) and next prime (28963440007).

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 (28963440007) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 546479974 + ... + 546480026.

It is an arithmetic number, because the mean of its divisors is an integer number (96789330).

Almost surely, 2^28963440000 is an apocalyptic number.

28963440000 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 28963440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61945171200).

28963440000 is an abundant number, since it is smaller than the sum of its proper divisors (94926902400).

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

28963440000 is a wasteful number, since it uses less digits than its factorization.

28963440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130 (or 97 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 28963440000 its reverse (4436982), we get a palindrome (28967876982).

The spelling of 28963440000 in words is "twenty-eight billion, nine hundred sixty-three million, four hundred forty thousand".