11928800887 has 4 divisors (see below), whose sum is σ = 11931153696. Its totient is φ = 11926448080.

The previous prime is 11928800867. The next prime is 11928800909. The reversal of 11928800887 is 78800882911.

It is a happy number.

11928800887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11928800887 - 2⁷ = 11928800759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11928800827) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1168783 + ... + 1178944.

It is an arithmetic number, because the mean of its divisors is an integer number (2982788424).

Almost surely, 2^11928800887 is an apocalyptic number.

11928800887 is a deficient number, since it is larger than the sum of its proper divisors (2352809).

11928800887 is an equidigital number, since it uses as much as digits as its factorization.

11928800887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352808.

The product of its (nonzero) digits is 516096, while the sum is 52.

The spelling of 11928800887 in words is "eleven billion, nine hundred twenty-eight million, eight hundred thousand, eight hundred eighty-seven".