12185258386 has 32 divisors (see below), whose sum is σ = 21632421888. Its totient is φ = 5039329680.

The previous prime is 12185258339. The next prime is 12185258411. The reversal of 12185258386 is 68385258121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71970 + ... + 171901.

It is an arithmetic number, because the mean of its divisors is an integer number (676013184).

Almost surely, 2^12185258386 is an apocalyptic number.

12185258386 is a deficient number, since it is larger than the sum of its proper divisors (9447163502).

12185258386 is a wasteful number, since it uses less digits than its factorization.

12185258386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244006.

The product of its digits is 921600, while the sum is 49.

The spelling of 12185258386 in words is "twelve billion, one hundred eighty-five million, two hundred fifty-eight thousand, three hundred eighty-six".