2686769189991 has 12 divisors (see below), whose sum is σ = 3883102708368. Its totient is φ = 1790157669984.

The previous prime is 2686769189969. The next prime is 2686769189999. The reversal of 2686769189991 is 1999819676862.

It is not a de Polignac number, because 2686769189991 - 2¹⁵ = 2686769157223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2686769189991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2686769189999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85132515 + ... + 85164068.

It is an arithmetic number, because the mean of its divisors is an integer number (323591892364).

Almost surely, 2^{2686769189991} is an apocalyptic number.

2686769189991 is a deficient number, since it is larger than the sum of its proper divisors (1196333518377).

2686769189991 is a wasteful number, since it uses less digits than its factorization.

2686769189991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170298342 (or 170298339 counting only the distinct ones).

The product of its digits is 1269789696, while the sum is 81.

The spelling of 2686769189991 in words is "two trillion, six hundred eighty-six billion, seven hundred sixty-nine million, one hundred eighty-nine thousand, nine hundred ninety-one".