28786463792 has 20 divisors (see below), whose sum is σ = 56559321936. Its totient is φ = 14190509760.

The previous prime is 28786463773. The next prime is 28786463801. The reversal of 28786463792 is 29736468782.

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, 12668963 + ... + 12671234.

Almost surely, 2^28786463792 is an apocalyptic number.

It is an amenable number.

28786463792 is a deficient number, since it is larger than the sum of its proper divisors (27772858144).

28786463792 is a wasteful number, since it uses less digits than its factorization.

28786463792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25340276 (or 25340270 counting only the distinct ones).

The product of its digits is 48771072, while the sum is 62.

The spelling of 28786463792 in words is "twenty-eight billion, seven hundred eighty-six million, four hundred sixty-three thousand, seven hundred ninety-two".