11395940689 has 24 divisors (see below), whose sum is σ = 13585992000. Its totient is φ = 9361573056.

The previous prime is 11395940687. The next prime is 11395940719. The reversal of 11395940689 is 98604959311.

It is not a de Polignac number, because 11395940689 - 2¹ = 11395940687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11395940687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 633187 + ... + 650935.

It is an arithmetic number, because the mean of its divisors is an integer number (566083000).

Almost surely, 2^11395940689 is an apocalyptic number.

It is an amenable number.

11395940689 is a deficient number, since it is larger than the sum of its proper divisors (2190051311).

11395940689 is an equidigital number, since it uses as much as digits as its factorization.

11395940689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17897 (or 17860 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 55.

The spelling of 11395940689 in words is "eleven billion, three hundred ninety-five million, nine hundred forty thousand, six hundred eighty-nine".