11684855287 has 16 divisors (see below), whose sum is σ = 13634691840. Its totient is φ = 9807299712.

The previous prime is 11684855279. The next prime is 11684855359. The reversal of 11684855287 is 78255848611.

It is not a de Polignac number, because 11684855287 - 2³ = 11684855279 is a prime.

It is a super-4 number, since 4×11684855287⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11684855207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23337 + ... + 154642.

It is an arithmetic number, because the mean of its divisors is an integer number (852168240).

Almost surely, 2^11684855287 is an apocalyptic number.

11684855287 is a deficient number, since it is larger than the sum of its proper divisors (1949836553).

11684855287 is a wasteful number, since it uses less digits than its factorization.

11684855287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178182.

The product of its digits is 4300800, while the sum is 55.

The spelling of 11684855287 in words is "eleven billion, six hundred eighty-four million, eight hundred fifty-five thousand, two hundred eighty-seven".