11685493558 has 16 divisors (see below), whose sum is σ = 19011981744. Its totient is φ = 5364931840.

The previous prime is 11685493543. The next prime is 11685493577. The reversal of 11685493558 is 85539458611.

11685493558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11685493499 and 11685493508.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4189960 + ... + 4192747.

It is an arithmetic number, because the mean of its divisors is an integer number (1188248859).

Almost surely, 2^11685493558 is an apocalyptic number.

11685493558 is a deficient number, since it is larger than the sum of its proper divisors (7326488186).

11685493558 is a wasteful number, since it uses less digits than its factorization.

11685493558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8382767.

The product of its digits is 5184000, while the sum is 55.

The spelling of 11685493558 in words is "eleven billion, six hundred eighty-five million, four hundred ninety-three thousand, five hundred fifty-eight".