28395992782 has 16 divisors (see below), whose sum is σ = 42703591392. Its totient is φ = 14161508640.

The previous prime is 28395992771. The next prime is 28395992837. The reversal of 28395992782 is 28729959382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310428 + ... + 1331920.

It is an arithmetic number, because the mean of its divisors is an integer number (2668974462).

Almost surely, 2^28395992782 is an apocalyptic number.

28395992782 is a deficient number, since it is larger than the sum of its proper divisors (14307598610).

28395992782 is a wasteful number, since it uses less digits than its factorization.

28395992782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23163.

The product of its digits is 39191040, while the sum is 64.

The spelling of 28395992782 in words is "twenty-eight billion, three hundred ninety-five million, nine hundred ninety-two thousand, seven hundred eighty-two".