17172531042 has 16 divisors (see below), whose sum is σ = 34346374752. Its totient is φ = 5723958240.

The previous prime is 17172531017. The next prime is 17172531119. The reversal of 17172531042 is 24013527171.

It is a junction number, because it is equal to n+sod(n) for n = 17172530994 and 17172531012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 226893 + ... + 292959.

It is an arithmetic number, because the mean of its divisors is an integer number (2146648422).

Almost surely, 2^17172531042 is an apocalyptic number.

17172531042 is an abundant number, since it is smaller than the sum of its proper divisors (17173843710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17172531042 is a wasteful number, since it uses less digits than its factorization.

17172531042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109393.

The product of its (nonzero) digits is 11760, while the sum is 33.

The spelling of 17172531042 in words is "seventeen billion, one hundred seventy-two million, five hundred thirty-one thousand, forty-two".