42722861171 has 4 divisors (see below), whose sum is σ = 42730922832. Its totient is φ = 42714799512.

The previous prime is 42722861149. The next prime is 42722861191. The reversal of 42722861171 is 17116822724.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42722861171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42722861131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4022876 + ... + 4033481.

It is an arithmetic number, because the mean of its divisors is an integer number (10682730708).

Almost surely, 2^42722861171 is an apocalyptic number.

42722861171 is a deficient number, since it is larger than the sum of its proper divisors (8061661).

42722861171 is an equidigital number, since it uses as much as digits as its factorization.

42722861171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8061660.

The product of its digits is 75264, while the sum is 41.

The spelling of 42722861171 in words is "forty-two billion, seven hundred twenty-two million, eight hundred sixty-one thousand, one hundred seventy-one".