28546173028 has 24 divisors (see below), whose sum is σ = 50744905344. Its totient is φ = 14047994400.

The previous prime is 28546173017. The next prime is 28546173031. The reversal of 28546173028 is 82037164582.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

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, 271413 + ... + 361603.

It is an arithmetic number, because the mean of its divisors is an integer number (2114371056).

Almost surely, 2^28546173028 is an apocalyptic number.

It is an amenable number.

28546173028 is a deficient number, since it is larger than the sum of its proper divisors (22198732316).

28546173028 is a wasteful number, since it uses less digits than its factorization.

28546173028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91443 (or 91441 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 28546173028 in words is "twenty-eight billion, five hundred forty-six million, one hundred seventy-three thousand, twenty-eight".