28076686024 has 32 divisors (see below), whose sum is σ = 54545121720. Its totient is φ = 13538036736.

The previous prime is 28076686003. The next prime is 28076686067. The reversal of 28076686024 is 42068667082.

It can be written as a sum of positive squares in 4 ways, for example, as 23679669924 + 4397016100 = 153882^2 + 66310^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386259 + ... + 453154.

Almost surely, 2^28076686024 is an apocalyptic number.

It is an amenable number.

28076686024 is a deficient number, since it is larger than the sum of its proper divisors (26468435696).

28076686024 is a wasteful number, since it uses less digits than its factorization.

28076686024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839569 (or 839565 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 28076686024 in words is "twenty-eight billion, seventy-six million, six hundred eighty-six thousand, twenty-four".