28265956034580 has 240 divisors, whose sum is σ = 96860212960896. Its totient is φ = 6843297726720.

The previous prime is 28265956034539. The next prime is 28265956034581. The reversal of 28265956034580 is 8543065956282.

28265956034580 is a `hidden beast` number, since 2 + 8 + 2 + 6 + 595 + 6 + 0 + 34 + 5 + 8 + 0 = 666.

It is a hoax number, since the sum of its digits (63) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28265956034581) 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 79 ways as a sum of consecutive naturals, for example, 12442057 + ... + 14537423.

Almost surely, 2^{28265956034580} is an apocalyptic number.

28265956034580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28265956034580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48430106480448).

28265956034580 is an abundant number, since it is smaller than the sum of its proper divisors (68594256926316).

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

28265956034580 is a wasteful number, since it uses less digits than its factorization.

28265956034580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2096156 (or 2096145 counting only the distinct ones).

The product of its (nonzero) digits is 124416000, while the sum is 63.

The spelling of 28265956034580 in words is "twenty-eight trillion, two hundred sixty-five billion, nine hundred fifty-six million, thirty-four thousand, five hundred eighty".