28576312536 has 32 divisors (see below), whose sum is σ = 71480079360. Its totient is φ = 9520197792.

The previous prime is 28576312529. The next prime is 28576312543. The reversal of 28576312536 is 63521367582.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28576312529) and next prime (28576312543).

It is a congruent number.

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, 282820 + ... + 370323.

It is an arithmetic number, because the mean of its divisors is an integer number (2233752480).

Almost surely, 2^28576312536 is an apocalyptic number.

It is an amenable number.

28576312536 is an abundant number, since it is smaller than the sum of its proper divisors (42903766824).

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

28576312536 is a wasteful number, since it uses less digits than its factorization.

28576312536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654975 (or 654971 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 48.

The spelling of 28576312536 in words is "twenty-eight billion, five hundred seventy-six million, three hundred twelve thousand, five hundred thirty-six".