28110041800 has 48 divisors (see below), whose sum is σ = 65367244800. Its totient is φ = 11242056000.

The previous prime is 28110041789. The next prime is 28110041801. The reversal of 28110041800 is 814001182.

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

It is not an unprimeable number, because it can be changed into a prime (28110041801) 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, 1822521 + ... + 1837879.

It is an arithmetic number, because the mean of its divisors is an integer number (1361817600).

Almost surely, 2^28110041800 is an apocalyptic number.

28110041800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28110041800 is an abundant number, since it is smaller than the sum of its proper divisors (37257203000).

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

28110041800 is a wasteful number, since it uses less digits than its factorization.

28110041800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24526 (or 24517 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

Adding to 28110041800 its reverse (814001182), we get a palindrome (28924042982).

The spelling of 28110041800 in words is "twenty-eight billion, one hundred ten million, forty-one thousand, eight hundred".