28068907752 has 64 divisors (see below), whose sum is σ = 78312801600. Its totient is φ = 9315069120.

The previous prime is 28068907733. The next prime is 28068907753. The reversal of 28068907752 is 25770986082.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (28068907753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237199 + ... + 335262.

It is an arithmetic number, because the mean of its divisors is an integer number (1223637525).

Almost surely, 2^28068907752 is an apocalyptic number.

It is an amenable number.

28068907752 is an abundant number, since it is smaller than the sum of its proper divisors (50243893848).

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

28068907752 is a wasteful number, since it uses less digits than its factorization.

28068907752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572703 (or 572693 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 54.

The spelling of 28068907752 in words is "twenty-eight billion, sixty-eight million, nine hundred seven thousand, seven hundred fifty-two".