28702842805 has 32 divisors (see below), whose sum is σ = 43759392768. Its totient is φ = 17581881600.

The previous prime is 28702842787. The next prime is 28702842811. The reversal of 28702842805 is 50824820782.

It is not a de Polignac number, because 28702842805 - 2¹¹ = 28702840757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1003366 + ... + 1031575.

It is an arithmetic number, because the mean of its divisors is an integer number (1367481024).

Almost surely, 2^28702842805 is an apocalyptic number.

It is an amenable number.

28702842805 is a deficient number, since it is larger than the sum of its proper divisors (15056549963).

28702842805 is a wasteful number, since it uses less digits than its factorization.

28702842805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2034997.

The product of its (nonzero) digits is 573440, while the sum is 46.

The spelling of 28702842805 in words is "twenty-eight billion, seven hundred two million, eight hundred forty-two thousand, eight hundred five".