171340343232457 has 4 divisors (see below), whose sum is σ = 195817535122816. Its totient is φ = 146863151342100.

The previous prime is 171340343232451. The next prime is 171340343232481. The reversal of 171340343232457 is 754232343043171.

171340343232457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 171340343232457 - 2²³ = 171340334843849 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 171340343232457.

It is not an unprimeable number, because it can be changed into a prime (171340343232451) 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, 12238595945169 + ... + 12238595945182.

It is an arithmetic number, because the mean of its divisors is an integer number (48954383780704).

Almost surely, 2^{171340343232457} is an apocalyptic number.

It is an amenable number.

171340343232457 is a deficient number, since it is larger than the sum of its proper divisors (24477191890359).

171340343232457 is an equidigital number, since it uses as much as digits as its factorization.

171340343232457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24477191890358.

The product of its (nonzero) digits is 5080320, while the sum is 49.

The spelling of 171340343232457 in words is "one hundred seventy-one trillion, three hundred forty billion, three hundred forty-three million, two hundred thirty-two thousand, four hundred fifty-seven".