11921969088 has 84 divisors (see below), whose sum is σ = 35274552768. Its totient is φ = 3845790720.

The previous prime is 11921969071. The next prime is 11921969123. The reversal of 11921969088 is 88096912911.

11921969088 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11 ways as a sum of consecutive naturals, for example, 315981 + ... + 351692.

It is an arithmetic number, because the mean of its divisors is an integer number (419935152).

Almost surely, 2^11921969088 is an apocalyptic number.

11921969088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11921969088 is an abundant number, since it is smaller than the sum of its proper divisors (23352583680).

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

11921969088 is a wasteful number, since it uses less digits than its factorization.

11921969088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667722 (or 667709 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 54.

The spelling of 11921969088 in words is "eleven billion, nine hundred twenty-one million, nine hundred sixty-nine thousand, eighty-eight".