28547356508 has 96 divisors (see below), whose sum is σ = 58861264896. Its totient is φ = 11989440000.

The previous prime is 28547356507. The next prime is 28547356517. The reversal of 28547356508 is 80565374582.

It is a self number, because there is not a number n which added to its sum of digits gives 28547356508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28547356501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2622998 + ... + 2633858.

It is an arithmetic number, because the mean of its divisors is an integer number (613138176).

Almost surely, 2^28547356508 is an apocalyptic number.

It is an amenable number.

28547356508 is an abundant number, since it is smaller than the sum of its proper divisors (30313908388).

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

28547356508 is a wasteful number, since it uses less digits than its factorization.

28547356508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10995 (or 10993 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 53.

The spelling of 28547356508 in words is "twenty-eight billion, five hundred forty-seven million, three hundred fifty-six thousand, five hundred eight".