11856432895 has 16 divisors (see below), whose sum is σ = 14466225888. Its totient is φ = 9326655360.

The previous prime is 11856432881. The next prime is 11856432911. The reversal of 11856432895 is 59823465811.

It is a happy number.

It is not a de Polignac number, because 11856432895 - 2¹⁹ = 11855908607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154825 + ... + 218365.

It is an arithmetic number, because the mean of its divisors is an integer number (904139118).

Almost surely, 2^11856432895 is an apocalyptic number.

11856432895 is a deficient number, since it is larger than the sum of its proper divisors (2609792993).

11856432895 is an equidigital number, since it uses as much as digits as its factorization.

11856432895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64170.

The product of its digits is 2073600, while the sum is 52.

The spelling of 11856432895 in words is "eleven billion, eight hundred fifty-six million, four hundred thirty-two thousand, eight hundred ninety-five".