28528906008 has 32 divisors (see below), whose sum is σ = 71333262000. Its totient is φ = 9508169088.

The previous prime is 28528905941. The next prime is 28528906009. The reversal of 28528906008 is 80060982582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28528906009) 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, 73318 + ... + 249866.

Almost surely, 2^28528906008 is an apocalyptic number.

It is an amenable number.

28528906008 is an abundant number, since it is smaller than the sum of its proper divisors (42804355992).

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

28528906008 is a wasteful number, since it uses less digits than its factorization.

28528906008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183291 (or 183287 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 28528906008 in words is "twenty-eight billion, five hundred twenty-eight million, nine hundred six thousand, eight".