171295488047 has 2 divisors, whose sum is σ = 171295488048. Its totient is φ = 171295488046.

The previous prime is 171295487963. The next prime is 171295488059. The reversal of 171295488047 is 740884592171.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 171295488047 - 2²⁸ = 171027052591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 171295487983 and 171295488001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (171295482047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85647744023 + 85647744024.

It is an arithmetic number, because the mean of its divisors is an integer number (85647744024).

Almost surely, 2^171295488047 is an apocalyptic number.

171295488047 is a deficient number, since it is larger than the sum of its proper divisors (1).

171295488047 is an equidigital number, since it uses as much as digits as its factorization.

171295488047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4515840, while the sum is 56.

The spelling of 171295488047 in words is "one hundred seventy-one billion, two hundred ninety-five million, four hundred eighty-eight thousand, forty-seven".