28099506204 has 504 divisors, whose sum is σ = 95864459264. Its totient is φ = 7043889600.

The previous prime is 28099506179. The next prime is 28099506241. The reversal of 28099506204 is 40260599082.

It is a self number, because there is not a number n which added to its sum of digits gives 28099506204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 76565229 + ... + 76565595.

Almost surely, 2^28099506204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28099506204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47932229632).

28099506204 is an abundant number, since it is smaller than the sum of its proper divisors (67764953060).

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

28099506204 is a wasteful number, since it uses less digits than its factorization.

28099506204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449 (or 421 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 28099506204 in words is "twenty-eight billion, ninety-nine million, five hundred six thousand, two hundred four".