11807545171 has 2 divisors, whose sum is σ = 11807545172. Its totient is φ = 11807545170.

The previous prime is 11807545111. The next prime is 11807545181. The reversal of 11807545171 is 17154570811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11807545171 is a prime.

It is not a weakly prime, because it can be changed into another prime (11807545111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5903772585 + 5903772586.

It is an arithmetic number, because the mean of its divisors is an integer number (5903772586).

Almost surely, 2^11807545171 is an apocalyptic number.

11807545171 is a deficient number, since it is larger than the sum of its proper divisors (1).

11807545171 is an equidigital number, since it uses as much as digits as its factorization.

11807545171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 40.

The spelling of 11807545171 in words is "eleven billion, eight hundred seven million, five hundred forty-five thousand, one hundred seventy-one".