28199692800000 has 1872 divisors, whose sum is σ = 110202851566080. Its totient is φ = 6926008320000.

The previous prime is 28199692799899. The next prime is 28199692800091. The reversal of 28199692800000 is 829699182.

It is a self number, because there is not a number n which added to its sum of digits gives 28199692800000.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 76838399817 + ... + 76838400183.

It is an arithmetic number, because the mean of its divisors is an integer number (58869044640).

Almost surely, 2^{28199692800000} is an apocalyptic number.

28199692800000 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 28199692800000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55101425783040).

28199692800000 is an abundant number, since it is smaller than the sum of its proper divisors (82003158766080).

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

28199692800000 is an equidigital number, since it uses as much as digits as its factorization.

28199692800000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The spelling of 28199692800000 in words is "twenty-eight trillion, one hundred ninety-nine billion, six hundred ninety-two million, eight hundred thousand".