28282828279 has 4 divisors (see below), whose sum is σ = 28284545520. Its totient is φ = 28281111040.

The previous prime is 28282828229. The next prime is 28282828283. The reversal of 28282828279 is 97282828282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28282828279 - 2¹³ = 28282820087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28282828229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833674 + ... + 866935.

It is an arithmetic number, because the mean of its divisors is an integer number (7071136380).

Almost surely, 2^28282828279 is an apocalyptic number.

28282828279 is a deficient number, since it is larger than the sum of its proper divisors (1717241).

28282828279 is a wasteful number, since it uses less digits than its factorization.

28282828279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717240.

The product of its digits is 8257536, while the sum is 58.

The spelling of 28282828279 in words is "twenty-eight billion, two hundred eighty-two million, eight hundred twenty-eight thousand, two hundred seventy-nine".