28395294684 has 24 divisors (see below), whose sum is σ = 70153081488. Its totient is φ = 8908327680.

The previous prime is 28395294673. The next prime is 28395294703. The reversal of 28395294684 is 48649259382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69596107 + ... + 69596514.

It is an arithmetic number, because the mean of its divisors is an integer number (2923045062).

Almost surely, 2^28395294684 is an apocalyptic number.

It is an amenable number.

28395294684 is an abundant number, since it is smaller than the sum of its proper divisors (41757786804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28395294684 is a wasteful number, since it uses less digits than its factorization.

28395294684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139192645 (or 139192643 counting only the distinct ones).

The product of its digits is 29859840, while the sum is 60.

The spelling of 28395294684 in words is "twenty-eight billion, three hundred ninety-five million, two hundred ninety-four thousand, six hundred eighty-four".