28288768268 has 6 divisors (see below), whose sum is σ = 49505344476. Its totient is φ = 14144384132.

The previous prime is 28288768223. The next prime is 28288768271. The reversal of 28288768268 is 86286788282.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3536096030 + ... + 3536096037.

It is an arithmetic number, because the mean of its divisors is an integer number (8250890746).

Almost surely, 2^28288768268 is an apocalyptic number.

It is an amenable number.

28288768268 is a deficient number, since it is larger than the sum of its proper divisors (21216576208).

28288768268 is a wasteful number, since it uses less digits than its factorization.

28288768268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7072192071 (or 7072192069 counting only the distinct ones).

The product of its digits is 66060288, while the sum is 65.

The spelling of 28288768268 in words is "twenty-eight billion, two hundred eighty-eight million, seven hundred sixty-eight thousand, two hundred sixty-eight".