28045140752 has 10 divisors (see below), whose sum is σ = 54337460238. Its totient is φ = 14022570368.

The previous prime is 28045140731. The next prime is 28045140769. The reversal of 28045140752 is 25704154082.

It can be written as a sum of positive squares in only one way, i.e., 22953462016 + 5091678736 = 151504^2 + 71356^2 .

It is a super-2 number, since 2×28045140752² (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 (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 876410633 + ... + 876410664.

Almost surely, 2^28045140752 is an apocalyptic number.

It is an amenable number.

28045140752 is a deficient number, since it is larger than the sum of its proper divisors (26292319486).

28045140752 is a wasteful number, since it uses less digits than its factorization.

28045140752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1752821305 (or 1752821299 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 38.

The spelling of 28045140752 in words is "twenty-eight billion, forty-five million, one hundred forty thousand, seven hundred fifty-two".