8561851134412 has 24 divisors (see below), whose sum is σ = 14995177415120. Its totient is φ = 4277515668480.

The previous prime is 8561851134379. The next prime is 8561851134449. The reversal of 8561851134412 is 2144311581658.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37582087 + ... + 37809217.

Almost surely, 2^{8561851134412} is an apocalyptic number.

It is an amenable number.

8561851134412 is a deficient number, since it is larger than the sum of its proper divisors (6433326280708).

8561851134412 is a wasteful number, since it uses less digits than its factorization.

8561851134412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234601 (or 234599 counting only the distinct ones).

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

The spelling of 8561851134412 in words is "eight trillion, five hundred sixty-one billion, eight hundred fifty-one million, one hundred thirty-four thousand, four hundred twelve".