28802731100 has 216 divisors, whose sum is σ = 78344454384. Its totient is φ = 9098496000.

The previous prime is 28802731073. The next prime is 28802731163. The reversal of 28802731100 is 113720882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2668715 + ... + 2679485.

Almost surely, 2^28802731100 is an apocalyptic number.

28802731100 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 28802731100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39172227192).

28802731100 is an abundant number, since it is smaller than the sum of its proper divisors (49541723284).

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

28802731100 is a wasteful number, since it uses less digits than its factorization.

28802731100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10837 (or 10819 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 32.

The spelling of 28802731100 in words is "twenty-eight billion, eight hundred two million, seven hundred thirty-one thousand, one hundred".