42475171117 has 4 divisors (see below), whose sum is σ = 43939832220. Its totient is φ = 41010510016.

The previous prime is 42475171097. The next prime is 42475171127. The reversal of 42475171117 is 71117157424.

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

It can be written as a sum of positive squares in 2 ways, for example, as 22137273796 + 20337897321 = 148786^2 + 142611^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42475171117 is a prime.

It is a super-2 number, since 2×42475171117² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42475171117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42475171127) 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, 732330508 + ... + 732330565.

It is an arithmetic number, because the mean of its divisors is an integer number (10984958055).

Almost surely, 2^42475171117 is an apocalyptic number.

It is an amenable number.

42475171117 is a deficient number, since it is larger than the sum of its proper divisors (1464661103).

42475171117 is a wasteful number, since it uses less digits than its factorization.

42475171117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1464661102.

The product of its digits is 54880, while the sum is 40.

The spelling of 42475171117 in words is "forty-two billion, four hundred seventy-five million, one hundred seventy-one thousand, one hundred seventeen".