864601457171 has 2 divisors, whose sum is σ = 864601457172. Its totient is φ = 864601457170.

The previous prime is 864601457059. The next prime is 864601457191. The reversal of 864601457171 is 171754106468.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-864601457171 is a prime.

It is not a weakly prime, because it can be changed into another prime (864601457191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432300728585 + 432300728586.

It is an arithmetic number, because the mean of its divisors is an integer number (432300728586).

Almost surely, 2^864601457171 is an apocalyptic number.

864601457171 is a deficient number, since it is larger than the sum of its proper divisors (1).

864601457171 is an equidigital number, since it uses as much as digits as its factorization.

864601457171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1128960, while the sum is 50.

The spelling of 864601457171 in words is "eight hundred sixty-four billion, six hundred one million, four hundred fifty-seven thousand, one hundred seventy-one".