11891846886 has 16 divisors (see below), whose sum is σ = 24363784368. Its totient is φ = 3867267200.

The previous prime is 11891846831. The next prime is 11891846887. The reversal of 11891846886 is 68864819811.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11891846887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24170175 + ... + 24170666.

It is an arithmetic number, because the mean of its divisors is an integer number (1522736523).

Almost surely, 2^11891846886 is an apocalyptic number.

11891846886 is an abundant number, since it is smaller than the sum of its proper divisors (12471937482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11891846886 is a wasteful number, since it uses less digits than its factorization.

11891846886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48340887.

The product of its digits is 5308416, while the sum is 60.

The spelling of 11891846886 in words is "eleven billion, eight hundred ninety-one million, eight hundred forty-six thousand, eight hundred eighty-six".