28002830027800 has 24 divisors (see below), whose sum is σ = 65106579815100. Its totient is φ = 11201132011040.

The previous prime is 28002830027773. The next prime is 28002830027819. The reversal of 28002830027800 is 872003820082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70007074870 + ... + 70007075269.

Almost surely, 2^{28002830027800} is an apocalyptic number.

28002830027800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28002830027800 is an abundant number, since it is smaller than the sum of its proper divisors (37103749787300).

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

28002830027800 is a wasteful number, since it uses less digits than its factorization.

28002830027800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140014150155 (or 140014150146 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

Adding to 28002830027800 its reverse (872003820082), we get a palindrome (28874833847882).

The spelling of 28002830027800 in words is "twenty-eight trillion, two billion, eight hundred thirty million, twenty-seven thousand, eight hundred".