493643434375744 has 21 divisors (see below), whose sum is σ = 979574042801641. Its totient is φ = 246821628315520.

The previous prime is 493643434375739. The next prime is 493643434375747. The reversal of 493643434375744 is 447573434346394.

The square root of 493643434375744 is 22218088.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 362890612897344 + 130752821478400 = 19049688^2 + 11434720^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493643434375747) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 176356074 + ... + 179133334.

Almost surely, 2^{493643434375744} is an apocalyptic number.

493643434375744 is the 22218088-th square number.

It is an amenable number.

493643434375744 is a deficient number, since it is larger than the sum of its proper divisors (485930608425897).

493643434375744 is an frugal number, since it uses more digits than its factorization.

493643434375744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5554534 (or 2777263 counting only the distinct ones).

The product of its digits is 4389396480, while the sum is 70.

The spelling of 493643434375744 in words is "four hundred ninety-three trillion, six hundred forty-three billion, four hundred thirty-four million, three hundred seventy-five thousand, seven hundred forty-four".