28768208833 has 8 divisors (see below), whose sum is σ = 35407026368. Its totient is φ = 22761659664.

The previous prime is 28768208797. The next prime is 28768208837. The reversal of 28768208833 is 33880286782.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28768208833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28768208837) 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, 158066991 + ... + 158067172.

It is an arithmetic number, because the mean of its divisors is an integer number (4425878296).

Almost surely, 2^28768208833 is an apocalyptic number.

It is an amenable number.

28768208833 is a deficient number, since it is larger than the sum of its proper divisors (6638817535).

28768208833 is a wasteful number, since it uses less digits than its factorization.

28768208833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316134183.

The product of its (nonzero) digits is 6193152, while the sum is 55.

The spelling of 28768208833 in words is "twenty-eight billion, seven hundred sixty-eight million, two hundred eight thousand, eight hundred thirty-three".