11709591777667 has 8 divisors (see below), whose sum is σ = 13382610643296. Its totient is φ = 10036627922112.

The previous prime is 11709591777647. The next prime is 11709591777671. The reversal of 11709591777667 is 76677719590711.

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 11709591777667 - 2²⁷ = 11709457559939 is a prime.

It is a super-2 number, since 2×11709591777667² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11709591777667.

It is not an unprimeable number, because it can be changed into a prime (11709591777607) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13295368 + ... + 14148709.

It is an arithmetic number, because the mean of its divisors is an integer number (1672826330412).

Almost surely, 2^{11709591777667} is an apocalyptic number.

11709591777667 is a deficient number, since it is larger than the sum of its proper divisors (1673018865629).

11709591777667 is an equidigital number, since it uses as much as digits as its factorization.

11709591777667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27505037.

The product of its (nonzero) digits is 245046060, while the sum is 73.

The spelling of 11709591777667 in words is "eleven trillion, seven hundred nine billion, five hundred ninety-one million, seven hundred seventy-seven thousand, six hundred sixty-seven".