171442427113 has 4 divisors (see below), whose sum is σ = 173507998608. Its totient is φ = 169376855620.

The previous prime is 171442427077. The next prime is 171442427137. The reversal of 171442427113 is 311724244171.

It is a happy number.

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 171442427113 - 2³⁷ = 34003473641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (171442425113) 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, 1032785623 + ... + 1032785788.

It is an arithmetic number, because the mean of its divisors is an integer number (43376999652).

Almost surely, 2^171442427113 is an apocalyptic number.

It is an amenable number.

171442427113 is a deficient number, since it is larger than the sum of its proper divisors (2065571495).

171442427113 is an equidigital number, since it uses as much as digits as its factorization.

171442427113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2065571494.

The product of its digits is 37632, while the sum is 37.

The spelling of 171442427113 in words is "one hundred seventy-one billion, four hundred forty-two million, four hundred twenty-seven thousand, one hundred thirteen".