171139696893 has 24 divisors (see below), whose sum is σ = 275946184800. Its totient is φ = 101308908960.

The previous prime is 171139696891. The next prime is 171139696913. The reversal of 171139696893 is 398696931171.

171139696893 is a `hidden beast` number, since 1 + 71 + 1 + 396 + 96 + 8 + 93 = 666.

It is not a de Polignac number, because 171139696893 - 2¹ = 171139696891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 171139696893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171139696891) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20096718 + ... + 20105231.

It is an arithmetic number, because the mean of its divisors is an integer number (11497757700).

Almost surely, 2^171139696893 is an apocalyptic number.

It is an amenable number.

171139696893 is a deficient number, since it is larger than the sum of its proper divisors (104806487907).

171139696893 is a wasteful number, since it uses less digits than its factorization.

171139696893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40202009 (or 40202006 counting only the distinct ones).

The product of its digits is 13226976, while the sum is 63.

The spelling of 171139696893 in words is "one hundred seventy-one billion, one hundred thirty-nine million, six hundred ninety-six thousand, eight hundred ninety-three".