11871395065 has 16 divisors (see below), whose sum is σ = 14721322176. Its totient is φ = 9184392000.

The previous prime is 11871395057. The next prime is 11871395083. The reversal of 11871395065 is 56059317811.

It is not a de Polignac number, because 11871395065 - 2³ = 11871395057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 251631 + ... + 295060.

It is an arithmetic number, because the mean of its divisors is an integer number (920082636).

Almost surely, 2^11871395065 is an apocalyptic number.

It is an amenable number.

11871395065 is a deficient number, since it is larger than the sum of its proper divisors (2849927111).

11871395065 is a wasteful number, since it uses less digits than its factorization.

11871395065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546840.

The product of its (nonzero) digits is 226800, while the sum is 46.

The spelling of 11871395065 in words is "eleven billion, eight hundred seventy-one million, three hundred ninety-five thousand, sixty-five".