28830091000 has 32 divisors (see below), whose sum is σ = 67462415280. Its totient is φ = 11532036000.

The previous prime is 28830090997. The next prime is 28830091007. The reversal of 28830091000 is 19003882.

It is a super-3 number, since 3×28830091000³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28830091007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14414046 + ... + 14416045.

Almost surely, 2^28830091000 is an apocalyptic number.

28830091000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28830091000 is an abundant number, since it is smaller than the sum of its proper divisors (38632324280).

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

28830091000 is a wasteful number, since it uses less digits than its factorization.

28830091000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28830112 (or 28830098 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

Adding to 28830091000 its reverse (19003882), we get a palindrome (28849094882).

The spelling of 28830091000 in words is "twenty-eight billion, eight hundred thirty million, ninety-one thousand".