28819786898784 has 192 divisors, whose sum is σ = 88101436147200. Its totient is φ = 8077874688000.

The previous prime is 28819786898779. The next prime is 28819786898789. The reversal of 28819786898784 is 48789868791882.

It is an interprime number because it is at equal distance from previous prime (28819786898779) and next prime (28819786898789).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28819786898789) 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, 320534667 + ... + 320624565.

It is an arithmetic number, because the mean of its divisors is an integer number (458861646600).

Almost surely, 2^{28819786898784} is an apocalyptic number.

28819786898784 is a gapful number since it is divisible by the number (24) 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 28819786898784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44050718073600).

28819786898784 is an abundant number, since it is smaller than the sum of its proper divisors (59281649248416).

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

28819786898784 is a wasteful number, since it uses less digits than its factorization.

28819786898784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98973 (or 98965 counting only the distinct ones).

The product of its digits is 49941577728, while the sum is 93.

The spelling of 28819786898784 in words is "twenty-eight trillion, eight hundred nineteen billion, seven hundred eighty-six million, eight hundred ninety-eight thousand, seven hundred eighty-four".