28288427712 has 56 divisors (see below), whose sum is σ = 74859044592. Its totient is φ = 9427891200.

The previous prime is 28288427701. The next prime is 28288427777. The reversal of 28288427712 is 21772488282.

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, 1901262 + ... + 1916082.

Almost surely, 2^28288427712 is an apocalyptic number.

It is an amenable number.

28288427712 is an abundant number, since it is smaller than the sum of its proper divisors (46570616880).

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

28288427712 is a wasteful number, since it uses less digits than its factorization.

28288427712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24777 (or 24767 counting only the distinct ones).

The product of its digits is 1605632, while the sum is 51.

The spelling of 28288427712 in words is "twenty-eight billion, two hundred eighty-eight million, four hundred twenty-seven thousand, seven hundred twelve".