39868471171 has 2 divisors, whose sum is σ = 39868471172. Its totient is φ = 39868471170.

The previous prime is 39868471133. The next prime is 39868471183. The reversal of 39868471171 is 17117486893.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39868471171 is a prime.

It is a super-2 number, since 2×39868471171² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (39868471771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19934235585 + 19934235586.

It is an arithmetic number, because the mean of its divisors is an integer number (19934235586).

Almost surely, 2^39868471171 is an apocalyptic number.

39868471171 is a deficient number, since it is larger than the sum of its proper divisors (1).

39868471171 is an equidigital number, since it uses as much as digits as its factorization.

39868471171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2032128, while the sum is 55.

The spelling of 39868471171 in words is "thirty-nine billion, eight hundred sixty-eight million, four hundred seventy-one thousand, one hundred seventy-one".