12154867684 has 24 divisors (see below), whose sum is σ = 22207973760. Its totient is φ = 5810021184.

The previous prime is 12154867679. The next prime is 12154867733. The reversal of 12154867684 is 48676845121.

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 in 7 ways as a sum of consecutive naturals, for example, 137712 + ... + 208024.

It is an arithmetic number, because the mean of its divisors is an integer number (925332240).

Almost surely, 2^12154867684 is an apocalyptic number.

It is an amenable number.

12154867684 is a deficient number, since it is larger than the sum of its proper divisors (10053106076).

12154867684 is a wasteful number, since it uses less digits than its factorization.

12154867684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72219 (or 72217 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 52.

The spelling of 12154867684 in words is "twelve billion, one hundred fifty-four million, eight hundred sixty-seven thousand, six hundred eighty-four".