11709643486 has 16 divisors (see below), whose sum is σ = 18821741904. Its totient is φ = 5444028544.

The previous prime is 11709643483. The next prime is 11709643493. The reversal of 11709643486 is 68434690711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11709643483) 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 7 ways as a sum of consecutive naturals, for example, 2071885 + ... + 2077528.

It is an arithmetic number, because the mean of its divisors is an integer number (1176358869).

Almost surely, 2^11709643486 is an apocalyptic number.

11709643486 is a deficient number, since it is larger than the sum of its proper divisors (7112098418).

11709643486 is a wasteful number, since it uses less digits than its factorization.

11709643486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149515.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 11709643486 in words is "eleven billion, seven hundred nine million, six hundred forty-three thousand, four hundred eighty-six".