28204131882 has 16 divisors (see below), whose sum is σ = 56575651392. Its totient is φ = 9373479360.

The previous prime is 28204131881. The next prime is 28204131919. The reversal of 28204131882 is 28813140282.

It is a self number, because there is not a number n which added to its sum of digits gives 28204131882.

It is not an unprimeable number, because it can be changed into a prime (28204131881) 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, 6972294 + ... + 6976337.

It is an arithmetic number, because the mean of its divisors is an integer number (3535978212).

Almost surely, 2^28204131882 is an apocalyptic number.

28204131882 is an abundant number, since it is smaller than the sum of its proper divisors (28371519510).

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

28204131882 is a wasteful number, since it uses less digits than its factorization.

28204131882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13948973.

The product of its (nonzero) digits is 49152, while the sum is 39.

The spelling of 28204131882 in words is "twenty-eight billion, two hundred four million, one hundred thirty-one thousand, eight hundred eighty-two".