28759694112 has 90 divisors (see below), whose sum is σ = 84606861339. Its totient is φ = 9583686720.

The previous prime is 28759694111. The next prime is 28759694123. The reversal of 28759694112 is 21149695782.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

28759694112 is a `hidden beast` number, since 2 + 8 + 7 + 596 + 9 + 41 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14379847056 + 14379847056 = 119916^2 + 119916^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=119916.

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 (28759694111) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 8632287 + ... + 8635617.

Almost surely, 2^28759694112 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 28759694112

28759694112 is an abundant number, since it is smaller than the sum of its proper divisors (55847167227).

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

28759694112 is an frugal number, since it uses more digits than its factorization.

28759694112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6684 (or 3336 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 28759694112 in words is "twenty-eight billion, seven hundred fifty-nine million, six hundred ninety-four thousand, one hundred twelve".