64743160493 has 4 divisors (see below), whose sum is σ = 70628902368. Its totient is φ = 58857418620.

The previous prime is 64743160463. The next prime is 64743160567. The reversal of 64743160493 is 39406134746.

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.

It is not a de Polignac number, because 64743160493 - 2¹⁸ = 64742898349 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 (64743160423) 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, 2942870921 + ... + 2942870942.

It is an arithmetic number, because the mean of its divisors is an integer number (17657225592).

Almost surely, 2^64743160493 is an apocalyptic number.

It is an amenable number.

64743160493 is a deficient number, since it is larger than the sum of its proper divisors (5885741875).

64743160493 is a wasteful number, since it uses less digits than its factorization.

64743160493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885741874.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 64743160493 in words is "sixty-four billion, seven hundred forty-three million, one hundred sixty thousand, four hundred ninety-three".