28379568178 has 16 divisors (see below), whose sum is σ = 46118439360. Its totient is φ = 13019827536.

The previous prime is 28379568169. The next prime is 28379568179. The reversal of 28379568178 is 87186597382.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (28379568179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3263688 + ... + 3272371.

It is an arithmetic number, because the mean of its divisors is an integer number (2882402460).

Almost surely, 2^28379568178 is an apocalyptic number.

28379568178 is a deficient number, since it is larger than the sum of its proper divisors (17738871182).

28379568178 is a wasteful number, since it uses less digits than its factorization.

28379568178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6536241.

The product of its digits is 40642560, while the sum is 64.

The spelling of 28379568178 in words is "twenty-eight billion, three hundred seventy-nine million, five hundred sixty-eight thousand, one hundred seventy-eight".