28857075882 has 16 divisors (see below), whose sum is σ = 58154719392. Its totient is φ = 9545597360.

The previous prime is 28857075869. The next prime is 28857075883.

28857075882 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (28857075883) 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, 18356133 + ... + 18357704.

It is an arithmetic number, because the mean of its divisors is an integer number (3634669962).

Almost surely, 2^28857075882 is an apocalyptic number.

28857075882 is an abundant number, since it is smaller than the sum of its proper divisors (29297643510).

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

28857075882 is a wasteful number, since it uses less digits than its factorization.

28857075882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36713973.

The product of its (nonzero) digits is 20070400, while the sum is 60.

The spelling of 28857075882 in words is "twenty-eight billion, eight hundred fifty-seven million, seventy-five thousand, eight hundred eighty-two".