11689144294849 has 24 divisors (see below), whose sum is σ = 14009809101288. Its totient is φ = 9720015863040.

The previous prime is 11689144294787. The next prime is 11689144294873. The reversal of 11689144294849 is 94849244198611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1165089248449 + 10524055046400 = 1079393^2 + 3244080^2 .

It is not a de Polignac number, because 11689144294849 - 2²¹ = 11689142197697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11689144292849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26567562 + ... + 27003955.

It is an arithmetic number, because the mean of its divisors is an integer number (583742045887).

Almost surely, 2^{11689144294849} is an apocalyptic number.

It is an amenable number.

11689144294849 is a deficient number, since it is larger than the sum of its proper divisors (2320664806439).

11689144294849 is an equidigital number, since it uses as much as digits as its factorization.

11689144294849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53571665 (or 53571658 counting only the distinct ones).

The product of its digits is 143327232, while the sum is 70.

The spelling of 11689144294849 in words is "eleven trillion, six hundred eighty-nine billion, one hundred forty-four million, two hundred ninety-four thousand, eight hundred forty-nine".