11699935872 has 64 divisors (see below), whose sum is σ = 32429194560. Its totient is φ = 3730411520.

The previous prime is 11699935813. The next prime is 11699935873. The reversal of 11699935872 is 27853999611.

11699935872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (11699935873) 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 7 ways as a sum of consecutive naturals, for example, 653529 + ... + 671192.

It is an arithmetic number, because the mean of its divisors is an integer number (506706165).

Almost surely, 2^11699935872 is an apocalyptic number.

11699935872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11699935872 is an abundant number, since it is smaller than the sum of its proper divisors (20729258688).

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

11699935872 is a wasteful number, since it uses less digits than its factorization.

11699935872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324761 (or 1324749 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 60.

The spelling of 11699935872 in words is "eleven billion, six hundred ninety-nine million, nine hundred thirty-five thousand, eight hundred seventy-two".