28916883900 has 72 divisors (see below), whose sum is σ = 92962435440. Its totient is φ = 7711168320.

The previous prime is 28916883893. The next prime is 28916883901. The reversal of 28916883900 is 938861982.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28916883901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5352279 + ... + 5357678.

Almost surely, 2^28916883900 is an apocalyptic number.

28916883900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28916883900 is an abundant number, since it is smaller than the sum of its proper divisors (64045551540).

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

28916883900 is a wasteful number, since it uses less digits than its factorization.

28916883900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10709980 (or 10709967 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 54.

The spelling of 28916883900 in words is "twenty-eight billion, nine hundred sixteen million, eight hundred eighty-three thousand, nine hundred".