6442873717 has 4 divisors (see below), whose sum is σ = 7363284256. Its totient is φ = 5522463180.

The previous prime is 6442873709. The next prime is 6442873727. The reversal of 6442873717 is 7173782446.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7173782446 = 2 ⋅3586891223.

It is a cyclic number.

It is not a de Polignac number, because 6442873717 - 2³ = 6442873709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6442873727) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 460205259 + ... + 460205272.

It is an arithmetic number, because the mean of its divisors is an integer number (1840821064).

Almost surely, 2^6442873717 is an apocalyptic number.

It is an amenable number.

6442873717 is a deficient number, since it is larger than the sum of its proper divisors (920410539).

6442873717 is an equidigital number, since it uses as much as digits as its factorization.

6442873717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920410538.

The product of its digits is 1580544, while the sum is 49.

The square root of 6442873717 is about 80267.5134596806. The cubic root of 6442873717 is about 1860.7721884346.

The spelling of 6442873717 in words is "six billion, four hundred forty-two million, eight hundred seventy-three thousand, seven hundred seventeen".