171442427127 has 32 divisors (see below), whose sum is σ = 237260812800. Its totient is φ = 110037699072.

The previous prime is 171442427077. The next prime is 171442427137. The reversal of 171442427127 is 721724244171.

It is not a de Polignac number, because 171442427127 - 2²⁷ = 171308209399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171442427137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17689699 + ... + 17699387.

It is an arithmetic number, because the mean of its divisors is an integer number (7414400400).

Almost surely, 2^171442427127 is an apocalyptic number.

171442427127 is a deficient number, since it is larger than the sum of its proper divisors (65818385673).

171442427127 is a wasteful number, since it uses less digits than its factorization.

171442427127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11687.

The product of its digits is 175616, while the sum is 42.

The spelling of 171442427127 in words is "one hundred seventy-one billion, four hundred forty-two million, four hundred twenty-seven thousand, one hundred twenty-seven".