28651164932 has 24 divisors (see below), whose sum is σ = 54128487000. Its totient is φ = 13191273216.

The previous prime is 28651164881. The next prime is 28651164947. The reversal of 28651164932 is 23946115682.

It can be written as a sum of positive squares in 4 ways, for example, as 11840486596 + 16810678336 = 108814^2 + 129656^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652307 + ... + 694842.

It is an arithmetic number, because the mean of its divisors is an integer number (2255353625).

Almost surely, 2^28651164932 is an apocalyptic number.

It is an amenable number.

28651164932 is a deficient number, since it is larger than the sum of its proper divisors (25477322068).

28651164932 is a wasteful number, since it uses less digits than its factorization.

28651164932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347575 (or 1347573 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The spelling of 28651164932 in words is "twenty-eight billion, six hundred fifty-one million, one hundred sixty-four thousand, nine hundred thirty-two".