28645254682 has 12 divisors (see below), whose sum is σ = 47229159978. Its totient is φ = 13020570200.

The previous prime is 28645254637. The next prime is 28645254739.

28645254682 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 23146883881 + 5498370801 = 152141^2 + 74151^2 .

It is a super-2 number, since 2×28645254682² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 59184169 + ... + 59184652.

Almost surely, 2^28645254682 is an apocalyptic number.

28645254682 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28645254682 is a deficient number, since it is larger than the sum of its proper divisors (18583905296).

28645254682 is a wasteful number, since it uses less digits than its factorization.

28645254682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118368845 (or 118368834 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 52.

The spelling of 28645254682 in words is "twenty-eight billion, six hundred forty-five million, two hundred fifty-four thousand, six hundred eighty-two".