8442648617 has 16 divisors (see below), whose sum is σ = 9526839168. Its totient is φ = 7423384320.

The previous prime is 8442648611. The next prime is 8442648623. The reversal of 8442648617 is 7168462448.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8442648611) and next prime (8442648623).

It is not a de Polignac number, because 8442648617 - 2¹² = 8442644521 is a prime.

It is a super-3 number, since 3×8442648617³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8442648611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13478 + ... + 130640.

It is an arithmetic number, because the mean of its divisors is an integer number (595427448).

Almost surely, 2^8442648617 is an apocalyptic number.

It is an amenable number.

8442648617 is a deficient number, since it is larger than the sum of its proper divisors (1084190551).

8442648617 is a wasteful number, since it uses less digits than its factorization.

8442648617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117440.

The product of its digits is 2064384, while the sum is 50.

The square root of 8442648617 is about 91883.8866015146. The cubic root of 8442648617 is about 2036.2272170389.

The spelling of 8442648617 in words is "eight billion, four hundred forty-two million, six hundred forty-eight thousand, six hundred seventeen".