171190717492 has 12 divisors (see below), whose sum is σ = 300239303140. Its totient is φ = 85408059456.

The previous prime is 171190717487. The next prime is 171190717493. The reversal of 171190717492 is 294717091171.

171190717492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 84987408676 + 86203308816 = 291526^2 + 293604^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171190717493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46822767 + ... + 46826422.

Almost surely, 2^171190717492 is an apocalyptic number.

It is an amenable number.

171190717492 is a deficient number, since it is larger than the sum of its proper divisors (129048585648).

171190717492 is a wasteful number, since it uses less digits than its factorization.

171190717492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93649650 (or 93649648 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 49.

The spelling of 171190717492 in words is "one hundred seventy-one billion, one hundred ninety million, seven hundred seventeen thousand, four hundred ninety-two".