172871714573 has 2 divisors, whose sum is σ = 172871714574. Its totient is φ = 172871714572.

The previous prime is 172871714531. The next prime is 172871714591. The reversal of 172871714573 is 375417178271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143566725604 + 29304988969 = 378902^2 + 171187^2 .

It is an emirp because it is prime and its reverse (375417178271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 172871714573 - 2²⁰ = 172870665997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (172871710573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86435857286 + 86435857287.

It is an arithmetic number, because the mean of its divisors is an integer number (86435857287).

Almost surely, 2^172871714573 is an apocalyptic number.

It is an amenable number.

172871714573 is a deficient number, since it is larger than the sum of its proper divisors (1).

172871714573 is an equidigital number, since it uses as much as digits as its factorization.

172871714573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304960, while the sum is 53.

The spelling of 172871714573 in words is "one hundred seventy-two billion, eight hundred seventy-one million, seven hundred fourteen thousand, five hundred seventy-three".