28768039308 has 72 divisors (see below), whose sum is σ = 79015838720. Its totient is φ = 8791584480.

The previous prime is 28768039297. The next prime is 28768039309. The reversal of 28768039308 is 80393086782.

It is not an unprimeable number, because it can be changed into a prime (28768039309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 657160 + ... + 699567.

Almost surely, 2^28768039308 is an apocalyptic number.

It is an amenable number.

28768039308 is an abundant number, since it is smaller than the sum of its proper divisors (50247799412).

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

28768039308 is a wasteful number, since it uses less digits than its factorization.

28768039308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356787 (or 1356782 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The spelling of 28768039308 in words is "twenty-eight billion, seven hundred sixty-eight million, thirty-nine thousand, three hundred eight".