171192638720029 has 2 divisors, whose sum is σ = 171192638720030. Its totient is φ = 171192638720028.

The previous prime is 171192638719939. The next prime is 171192638720071. The reversal of 171192638720029 is 920027836291171.

171192638720029 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115250466417529 + 55942172302500 = 10735477^2 + 7479450^2 .

It is a cyclic number.

It is not a de Polignac number, because 171192638720029 - 2¹⁵ = 171192638687261 is a prime.

It is a super-2 number, since 2×171192638720029² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171192638720629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85596319360014 + 85596319360015.

It is an arithmetic number, because the mean of its divisors is an integer number (85596319360015).

Almost surely, 2^{171192638720029} is an apocalyptic number.

It is an amenable number.

171192638720029 is a deficient number, since it is larger than the sum of its proper divisors (1).

171192638720029 is an equidigital number, since it uses as much as digits as its factorization.

171192638720029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The spelling of 171192638720029 in words is "one hundred seventy-one trillion, one hundred ninety-two billion, six hundred thirty-eight million, seven hundred twenty thousand, twenty-nine".