28278163582 has 16 divisors (see below), whose sum is σ = 42485517360. Its totient is φ = 14116342528.

The previous prime is 28278163577. The next prime is 28278163591. The reversal of 28278163582 is 28536187282.

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, 5491533 + ... + 5496679.

It is an arithmetic number, because the mean of its divisors is an integer number (2655344835).

Almost surely, 2^28278163582 is an apocalyptic number.

28278163582 is a deficient number, since it is larger than the sum of its proper divisors (14207353778).

28278163582 is a wasteful number, since it uses less digits than its factorization.

28278163582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9035.

The product of its digits is 2580480, while the sum is 52.

The spelling of 28278163582 in words is "twenty-eight billion, two hundred seventy-eight million, one hundred sixty-three thousand, five hundred eighty-two".