42718775767 has 4 divisors (see below), whose sum is σ = 42765875656. Its totient is φ = 42671675880.

The previous prime is 42718775747. The next prime is 42718775819. The reversal of 42718775767 is 76757781724.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42718775767 - 2¹⁹ = 42718251479 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 (42718775707) 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, 23548584 + ... + 23550397.

It is an arithmetic number, because the mean of its divisors is an integer number (10691468914).

Almost surely, 2^42718775767 is an apocalyptic number.

42718775767 is a deficient number, since it is larger than the sum of its proper divisors (47099889).

42718775767 is an equidigital number, since it uses as much as digits as its factorization.

42718775767 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47099888.

The product of its digits is 32269440, while the sum is 61.

The spelling of 42718775767 in words is "forty-two billion, seven hundred eighteen million, seven hundred seventy-five thousand, seven hundred sixty-seven".