171398626708093 has 4 divisors (see below), whose sum is σ = 171398783694400. Its totient is φ = 171398469721788.

The previous prime is 171398626708091. The next prime is 171398626708163. The reversal of 171398626708093 is 390807626893171.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 171398626708093 - 2¹ = 171398626708091 is a prime.

It is a super-2 number, since 2×171398626708093² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171398626708091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76843893 + ... + 79042906.

It is an arithmetic number, because the mean of its divisors is an integer number (42849695923600).

Almost surely, 2^{171398626708093} is an apocalyptic number.

It is an amenable number.

171398626708093 is a deficient number, since it is larger than the sum of its proper divisors (156986307).

171398626708093 is a wasteful number, since it uses less digits than its factorization.

171398626708093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156986306.

The product of its (nonzero) digits is 164602368, while the sum is 70.

The spelling of 171398626708093 in words is "one hundred seventy-one trillion, three hundred ninety-eight billion, six hundred twenty-six million, seven hundred eight thousand, ninety-three".