171912496339 has 16 divisors (see below), whose sum is σ = 173964456000. Its totient is φ = 169876094976.

The previous prime is 171912496291. The next prime is 171912496391. The reversal of 171912496339 is 933694219171.

It is a cyclic number.

It is not a de Polignac number, because 171912496339 - 2²¹ = 171910399187 is a prime.

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 171912496339.

It is not an unprimeable number, because it can be changed into a prime (171912496739) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19840122 + ... + 19848784.

It is an arithmetic number, because the mean of its divisors is an integer number (10872778500).

Almost surely, 2^171912496339 is an apocalyptic number.

171912496339 is a deficient number, since it is larger than the sum of its proper divisors (2051959661).

171912496339 is a wasteful number, since it uses less digits than its factorization.

171912496339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9534.

The product of its digits is 2204496, while the sum is 55.

The spelling of 171912496339 in words is "one hundred seventy-one billion, nine hundred twelve million, four hundred ninety-six thousand, three hundred thirty-nine".