28686001376 has 24 divisors (see below), whose sum is σ = 56500620120. Its totient is φ = 14336637568.

The previous prime is 28686001349. The next prime is 28686001391. The reversal of 28686001376 is 67310068682.

It is a self number, because there is not a number n which added to its sum of digits gives 28686001376.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 125171 + ... + 270258.

It is an arithmetic number, because the mean of its divisors is an integer number (2354192505).

Almost surely, 2^28686001376 is an apocalyptic number.

It is an amenable number.

28686001376 is a deficient number, since it is larger than the sum of its proper divisors (27814618744).

28686001376 is a wasteful number, since it uses less digits than its factorization.

28686001376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397706 (or 397698 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 28686001376 in words is "twenty-eight billion, six hundred eighty-six million, one thousand, three hundred seventy-six".