8142446187 has 24 divisors (see below), whose sum is σ = 12202446256. Its totient is φ = 5425836192.

The previous prime is 8142446183. The next prime is 8142446197. The reversal of 8142446187 is 7816442418.

8142446187 is a `hidden beast` number, since 8 + 1 + 4 + 24 + 4 + 618 + 7 = 666.

It is not a de Polignac number, because 8142446187 - 2² = 8142446183 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8142446183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 644253 + ... + 656769.

Almost surely, 2^8142446187 is an apocalyptic number.

8142446187 is a deficient number, since it is larger than the sum of its proper divisors (4060000069).

8142446187 is a wasteful number, since it uses less digits than its factorization.

8142446187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15209 (or 15197 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 8142446187 is about 90235.5040269627. The cubic root of 8142446187 is about 2011.8007497901.

The spelling of 8142446187 in words is "eight billion, one hundred forty-two million, four hundred forty-six thousand, one hundred eighty-seven".