12585782156 has 6 divisors (see below), whose sum is σ = 22025118780. Its totient is φ = 6292891076.

The previous prime is 12585782147. The next prime is 12585782171. The reversal of 12585782156 is 65128758521.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1573222766 + ... + 1573222773.

It is an arithmetic number, because the mean of its divisors is an integer number (3670853130).

Almost surely, 2^12585782156 is an apocalyptic number.

It is an amenable number.

12585782156 is a deficient number, since it is larger than the sum of its proper divisors (9439336624).

12585782156 is a wasteful number, since it uses less digits than its factorization.

12585782156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146445543 (or 3146445541 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 50.

The spelling of 12585782156 in words is "twelve billion, five hundred eighty-five million, seven hundred eighty-two thousand, one hundred fifty-six".