28868969752 has 48 divisors (see below), whose sum is σ = 63145436760. Its totient is φ = 12337307136.

The previous prime is 28868969749. The next prime is 28868969771. The reversal of 28868969752 is 25796986882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34063 + ... + 242689.

Almost surely, 2^28868969752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28868969752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31572718380).

28868969752 is an abundant number, since it is smaller than the sum of its proper divisors (34276467008).

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

28868969752 is a wasteful number, since it uses less digits than its factorization.

28868969752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209000 (or 208989 counting only the distinct ones).

The product of its digits is 209018880, while the sum is 70.

The spelling of 28868969752 in words is "twenty-eight billion, eight hundred sixty-eight million, nine hundred sixty-nine thousand, seven hundred fifty-two".