28751267936 has 48 divisors (see below), whose sum is σ = 58687856640. Its totient is φ = 13850509440.

The previous prime is 28751267929. The next prime is 28751267959. The reversal of 28751267936 is 63976215782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161345 + ... + 289023.

It is an arithmetic number, because the mean of its divisors is an integer number (1222663680).

Almost surely, 2^28751267936 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 28751267936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29343928320).

28751267936 is an abundant number, since it is smaller than the sum of its proper divisors (29936588704).

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

28751267936 is a wasteful number, since it uses less digits than its factorization.

28751267936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127947 (or 127939 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 56.

The spelling of 28751267936 in words is "twenty-eight billion, seven hundred fifty-one million, two hundred sixty-seven thousand, nine hundred thirty-six".