12787582827 has 4 divisors (see below), whose sum is σ = 17050110440. Its totient is φ = 8525055216.

The previous prime is 12787582813. The next prime is 12787582853. The reversal of 12787582827 is 72828578721.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12787582827 - 2⁸ = 12787582571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12787582867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2131263802 + ... + 2131263807.

It is an arithmetic number, because the mean of its divisors is an integer number (4262527610).

Almost surely, 2^12787582827 is an apocalyptic number.

12787582827 is a deficient number, since it is larger than the sum of its proper divisors (4262527613).

12787582827 is an equidigital number, since it uses as much as digits as its factorization.

12787582827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4262527612.

The product of its digits is 7024640, while the sum is 57.

The spelling of 12787582827 in words is "twelve billion, seven hundred eighty-seven million, five hundred eighty-two thousand, eight hundred twenty-seven".