28134641682 has 64 divisors (see below), whose sum is σ = 73916985600. Its totient is φ = 7761277440.

The previous prime is 28134641669. The next prime is 28134641687. The reversal of 28134641682 is 28614643182.

28134641682 is a `hidden beast` number, since 28 + 1 + 3 + 464 + 168 + 2 = 666.

28134641682 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (28134641687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1272319 + ... + 1294242.

It is an arithmetic number, because the mean of its divisors is an integer number (1154952900).

Almost surely, 2^28134641682 is an apocalyptic number.

28134641682 is an abundant number, since it is smaller than the sum of its proper divisors (45782343918).

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

28134641682 is a wasteful number, since it uses less digits than its factorization.

28134641682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566608 (or 2566602 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The spelling of 28134641682 in words is "twenty-eight billion, one hundred thirty-four million, six hundred forty-one thousand, six hundred eighty-two".