11697212969 has 4 divisors (see below), whose sum is σ = 12596998596. Its totient is φ = 10797427344.

The previous prime is 11697212963. The next prime is 11697212977. The reversal of 11697212969 is 96921279611.

11697212969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5619451369 + 6077761600 = 74963^2 + 77960^2 .

It is a cyclic number.

It is not a de Polignac number, because 11697212969 - 2²⁰ = 11696164393 is a prime.

It is a super-2 number, since 2×11697212969² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11697212969.

It is not an unprimeable number, because it can be changed into a prime (11697212963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 449892794 + ... + 449892819.

It is an arithmetic number, because the mean of its divisors is an integer number (3149249649).

Almost surely, 2^11697212969 is an apocalyptic number.

It is an amenable number.

11697212969 is a deficient number, since it is larger than the sum of its proper divisors (899785627).

11697212969 is an equidigital number, since it uses as much as digits as its factorization.

11697212969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899785626.

The product of its digits is 734832, while the sum is 53.

The spelling of 11697212969 in words is "eleven billion, six hundred ninety-seven million, two hundred twelve thousand, nine hundred sixty-nine".