28399394883 has 16 divisors (see below), whose sum is σ = 38007484416. Its totient is φ = 18862184640.

The previous prime is 28399394851. The next prime is 28399394887. The reversal of 28399394883 is 38849399382.

It is not a de Polignac number, because 28399394883 - 2⁵ = 28399394851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28399394887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1975066 + ... + 1989392.

It is an arithmetic number, because the mean of its divisors is an integer number (2375467776).

Almost surely, 2^28399394883 is an apocalyptic number.

28399394883 is a deficient number, since it is larger than the sum of its proper divisors (9608089533).

28399394883 is a wasteful number, since it uses less digits than its factorization.

28399394883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16754.

The product of its digits is 80621568, while the sum is 66.

The spelling of 28399394883 in words is "twenty-eight billion, three hundred ninety-nine million, three hundred ninety-four thousand, eight hundred eighty-three".