28234853879 has 16 divisors (see below), whose sum is σ = 30772245600. Its totient is φ = 25804187136.

The previous prime is 28234853851. The next prime is 28234853897. The reversal of 28234853879 is 97835843282.

It is a cyclic number.

It is not a de Polignac number, because 28234853879 - 2⁸ = 28234853623 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 (28234823879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635867 + ... + 678819.

It is an arithmetic number, because the mean of its divisors is an integer number (1923265350).

Almost surely, 2^28234853879 is an apocalyptic number.

28234853879 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

28234853879 is a deficient number, since it is larger than the sum of its proper divisors (2537391721).

28234853879 is a wasteful number, since it uses less digits than its factorization.

28234853879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44194.

The product of its digits is 23224320, while the sum is 59.

The spelling of 28234853879 in words is "twenty-eight billion, two hundred thirty-four million, eight hundred fifty-three thousand, eight hundred seventy-nine".