28783265364 has 144 divisors (see below), whose sum is σ = 84437458560. Its totient is φ = 8097408000.

The previous prime is 28783265363. The next prime is 28783265417. The reversal of 28783265364 is 46356238782.

28783265364 is a `hidden beast` number, since 2 + 8 + 7 + 83 + 26 + 536 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 28783265364.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28783265363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5626872 + ... + 5631984.

It is an arithmetic number, because the mean of its divisors is an integer number (586371240).

Almost surely, 2^28783265364 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 28783265364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42218729280).

28783265364 is an abundant number, since it is smaller than the sum of its proper divisors (55654193196).

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

28783265364 is a wasteful number, since it uses less digits than its factorization.

28783265364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5470 (or 5465 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 28783265364 in words is "twenty-eight billion, seven hundred eighty-three million, two hundred sixty-five thousand, three hundred sixty-four".