11914867669 has 8 divisors (see below), whose sum is σ = 12004617240. Its totient is φ = 11825158656.

The previous prime is 11914867663. The next prime is 11914867711. The reversal of 11914867669 is 96676841911.

It can be written as a sum of positive squares in 4 ways, for example, as 1217102769 + 10697764900 = 34887^2 + 103430^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11914867669 - 2⁷ = 11914867541 is a prime.

It is a super-2 number, since 2×11914867669² (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 (11914867663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 851917 + ... + 865789.

It is an arithmetic number, because the mean of its divisors is an integer number (1500577155).

Almost surely, 2^11914867669 is an apocalyptic number.

It is an amenable number.

11914867669 is a deficient number, since it is larger than the sum of its proper divisors (89749571).

11914867669 is a wasteful number, since it uses less digits than its factorization.

11914867669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20279.

The product of its digits is 3919104, while the sum is 58.

The spelling of 11914867669 in words is "eleven billion, nine hundred fourteen million, eight hundred sixty-seven thousand, six hundred sixty-nine".