11887668719 has 12 divisors (see below), whose sum is σ = 12322385400. Its totient is φ = 11467811040.

The previous prime is 11887668707. The next prime is 11887668739. The reversal of 11887668719 is 91786678811.

It is a happy number.

It is not a de Polignac number, because 11887668719 - 2¹⁶ = 11887603183 is a prime.

It is a super-2 number, since 2×11887668719² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11887668739) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1080257 + ... + 1091205.

It is an arithmetic number, because the mean of its divisors is an integer number (1026865450).

Almost surely, 2^11887668719 is an apocalyptic number.

11887668719 is a deficient number, since it is larger than the sum of its proper divisors (434716681).

11887668719 is a wasteful number, since it uses less digits than its factorization.

11887668719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12298 (or 12269 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 62.

The spelling of 11887668719 in words is "eleven billion, eight hundred eighty-seven million, six hundred sixty-eight thousand, seven hundred nineteen".