28293941858 has 64 divisors (see below), whose sum is σ = 52815393792. Its totient is φ = 11069291520.

The previous prime is 28293941779. The next prime is 28293941867. The reversal of 28293941858 is 85814939282.

It is a junction number, because it is equal to n+sod(n) for n = 28293941797 and 28293941806.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11124935 + ... + 11127477.

It is an arithmetic number, because the mean of its divisors is an integer number (825240528).

Almost surely, 2^28293941858 is an apocalyptic number.

28293941858 is a deficient number, since it is larger than the sum of its proper divisors (24521451934).

28293941858 is a wasteful number, since it uses less digits than its factorization.

28293941858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219.

The product of its digits is 9953280, while the sum is 59.

The spelling of 28293941858 in words is "twenty-eight billion, two hundred ninety-three million, nine hundred forty-one thousand, eight hundred fifty-eight".