8442746865 has 48 divisors (see below), whose sum is σ = 16821462528. Its totient is φ = 3837207168.

The previous prime is 8442746821. The next prime is 8442746869. The reversal of 8442746865 is 5686472448.

It is a happy number.

8442746865 is a `hidden beast` number, since 84 + 42 + 7 + 468 + 65 = 666.

It is not a de Polignac number, because 8442746865 - 2¹⁴ = 8442730481 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8442746869) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22969 + ... + 131958.

It is an arithmetic number, because the mean of its divisors is an integer number (350447136).

Almost surely, 2^8442746865 is an apocalyptic number.

It is an amenable number.

8442746865 is a deficient number, since it is larger than the sum of its proper divisors (8378715663).

8442746865 is a wasteful number, since it uses less digits than its factorization.

8442746865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155118 (or 155115 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 54.

The square root of 8442746865 is about 91884.4212312403. The cubic root of 8442746865 is about 2036.2351156058.

The spelling of 8442746865 in words is "eight billion, four hundred forty-two million, seven hundred forty-six thousand, eight hundred sixty-five".