12861748612 has 12 divisors (see below), whose sum is σ = 22509988816. Its totient is φ = 6430323240.

The previous prime is 12861748591. The next prime is 12861748643. The reversal of 12861748612 is 21684716821.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82818 + ... + 180505.

Almost surely, 2^12861748612 is an apocalyptic number.

It is an amenable number.

12861748612 is a deficient number, since it is larger than the sum of its proper divisors (9648240204).

12861748612 is a wasteful number, since it uses less digits than its factorization.

12861748612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275538 (or 275536 counting only the distinct ones).

The product of its digits is 258048, while the sum is 46.

The spelling of 12861748612 in words is "twelve billion, eight hundred sixty-one million, seven hundred forty-eight thousand, six hundred twelve".