11685286338 has 32 divisors (see below), whose sum is σ = 25561792512. Its totient is φ = 3531742800.

The previous prime is 11685286337. The next prime is 11685286339. The reversal of 11685286338 is 83368258611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11685286337) and next prime (11685286339).

It is not an unprimeable number, because it can be changed into a prime (11685286337) 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, 205858 + ... + 256413.

It is an arithmetic number, because the mean of its divisors is an integer number (798806016).

Almost surely, 2^11685286338 is an apocalyptic number.

11685286338 is an abundant number, since it is smaller than the sum of its proper divisors (13876506174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11685286338 is a wasteful number, since it uses less digits than its factorization.

11685286338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462670.

The product of its digits is 1658880, while the sum is 51.

The spelling of 11685286338 in words is "eleven billion, six hundred eighty-five million, two hundred eighty-six thousand, three hundred thirty-eight".