171870235042 has 16 divisors (see below), whose sum is σ = 297785862432. Its totient is φ = 73527373120.

The previous prime is 171870234997. The next prime is 171870235079. The reversal of 171870235042 is 240532078171.

It is a junction number, because it is equal to n+sod(n) for n = 171870234986 and 171870235004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229772668 + ... + 229773415.

It is an arithmetic number, because the mean of its divisors is an integer number (18611616402).

Almost surely, 2^171870235042 is an apocalyptic number.

171870235042 is a deficient number, since it is larger than the sum of its proper divisors (125915627390).

171870235042 is a wasteful number, since it uses less digits than its factorization.

171870235042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459546113.

The product of its (nonzero) digits is 94080, while the sum is 40.

The spelling of 171870235042 in words is "one hundred seventy-one billion, eight hundred seventy million, two hundred thirty-five thousand, forty-two".