28675966683 has 64 divisors (see below), whose sum is σ = 47366746112. Its totient is φ = 15026964480.

The previous prime is 28675966681. The next prime is 28675966747. The reversal of 28675966683 is 38666957682.

It is a happy number.

It is not a de Polignac number, because 28675966683 - 2¹ = 28675966681 is a prime.

It is a super-2 number, since 2×28675966683² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28675966681) 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 63 ways as a sum of consecutive naturals, for example, 43382373 + ... + 43383033.

It is an arithmetic number, because the mean of its divisors is an integer number (740105408).

Almost surely, 2^28675966683 is an apocalyptic number.

28675966683 is a deficient number, since it is larger than the sum of its proper divisors (18690779429).

28675966683 is a wasteful number, since it uses less digits than its factorization.

28675966683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1484.

The product of its digits is 156764160, while the sum is 66.

Subtracting 28675966683 from its reverse (38666957682), we obtain a palindrome (9990990999).

The spelling of 28675966683 in words is "twenty-eight billion, six hundred seventy-five million, nine hundred sixty-six thousand, six hundred eighty-three".