813714440171 has 2 divisors, whose sum is σ = 813714440172. Its totient is φ = 813714440170.

The previous prime is 813714440159. The next prime is 813714440177. The reversal of 813714440171 is 171044417318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813714440171 - 2²² = 813710245867 is a prime.

It is not a weakly prime, because it can be changed into another prime (813714440177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406857220085 + 406857220086.

It is an arithmetic number, because the mean of its divisors is an integer number (406857220086).

Almost surely, 2^813714440171 is an apocalyptic number.

813714440171 is a deficient number, since it is larger than the sum of its proper divisors (1).

813714440171 is an equidigital number, since it uses as much as digits as its factorization.

813714440171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 41.

Adding to 813714440171 its reverse (171044417318), we get a palindrome (984758857489).

The spelling of 813714440171 in words is "eight hundred thirteen billion, seven hundred fourteen million, four hundred forty thousand, one hundred seventy-one".