28895025404 has 18 divisors (see below), whose sum is σ = 58822016400. Its totient is φ = 12383582232.

The previous prime is 28895025391. The next prime is 28895025407. The reversal of 28895025404 is 40452059882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28895025407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73711604 + ... + 73711995.

It is an arithmetic number, because the mean of its divisors is an integer number (3267889800).

Almost surely, 2^28895025404 is an apocalyptic number.

It is an amenable number.

28895025404 is an abundant number, since it is smaller than the sum of its proper divisors (29926990996).

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

28895025404 is a wasteful number, since it uses less digits than its factorization.

28895025404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147423617 (or 147423608 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 47.

The spelling of 28895025404 in words is "twenty-eight billion, eight hundred ninety-five million, twenty-five thousand, four hundred four".