442233748761617 has 4 divisors (see below), whose sum is σ = 442234066738740. Its totient is φ = 442233430784496.

The previous prime is 442233748761589. The next prime is 442233748761619. The reversal of 442233748761617 is 716167847332244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 305799925482496 + 136433823279121 = 17487136^2 + 11680489^2 .

It is a cyclic number.

It is not a de Polignac number, because 442233748761617 - 2¹⁶ = 442233748696081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (442233748761619) 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, 156893198 + ... + 159687015.

It is an arithmetic number, because the mean of its divisors is an integer number (110558516684685).

Almost surely, 2^{442233748761617} is an apocalyptic number.

It is an amenable number.

442233748761617 is a deficient number, since it is larger than the sum of its proper divisors (317977123).

442233748761617 is a wasteful number, since it uses less digits than its factorization.

442233748761617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317977122.

The product of its digits is 227598336, while the sum is 65.

The spelling of 442233748761617 in words is "four hundred forty-two trillion, two hundred thirty-three billion, seven hundred forty-eight million, seven hundred sixty-one thousand, six hundred seventeen".