28885745752 has 32 divisors (see below), whose sum is σ = 57161880000. Its totient is φ = 13646592288.

The previous prime is 28885745743. The next prime is 28885745753. The reversal of 28885745752 is 25754758882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28885745753) 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, 193102 + ... + 308317.

It is an arithmetic number, because the mean of its divisors is an integer number (1786308750).

Almost surely, 2^28885745752 is an apocalyptic number.

It is an amenable number.

28885745752 is a deficient number, since it is larger than the sum of its proper divisors (28276134248).

28885745752 is a wasteful number, since it uses less digits than its factorization.

28885745752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501823 (or 501819 counting only the distinct ones).

The product of its digits is 50176000, while the sum is 61.

The spelling of 28885745752 in words is "twenty-eight billion, eight hundred eighty-five million, seven hundred forty-five thousand, seven hundred fifty-two".