42709341993 has 4 divisors (see below), whose sum is σ = 56945789328. Its totient is φ = 28472894660.

The previous prime is 42709341959. The next prime is 42709342007. The reversal of 42709341993 is 39914390724.

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 a cyclic number.

It is not a de Polignac number, because 42709341993 - 2²⁴ = 42692564777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42709341293) 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, 7118223663 + ... + 7118223668.

It is an arithmetic number, because the mean of its divisors is an integer number (14236447332).

Almost surely, 2^42709341993 is an apocalyptic number.

It is an amenable number.

42709341993 is a deficient number, since it is larger than the sum of its proper divisors (14236447335).

42709341993 is a wasteful number, since it uses less digits than its factorization.

42709341993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14236447334.

The product of its (nonzero) digits is 1469664, while the sum is 51.

The spelling of 42709341993 in words is "forty-two billion, seven hundred nine million, three hundred forty-one thousand, nine hundred ninety-three".