28472848786 has 16 divisors (see below), whose sum is σ = 46074823704. Its totient is φ = 13146175744.

The previous prime is 28472848777. The next prime is 28472848819. The reversal of 28472848786 is 68784827482.

It can be written as a sum of positive squares in 4 ways, for example, as 28196790561 + 276058225 = 167919^2 + 16615^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7898545 + ... + 7902148.

Almost surely, 2^28472848786 is an apocalyptic number.

28472848786 is a deficient number, since it is larger than the sum of its proper divisors (17601974918).

28472848786 is a wasteful number, since it uses less digits than its factorization.

28472848786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15800765.

The product of its digits is 77070336, while the sum is 64.

The spelling of 28472848786 in words is "twenty-eight billion, four hundred seventy-two million, eight hundred forty-eight thousand, seven hundred eighty-six".