11861735928 has 32 divisors (see below), whose sum is σ = 33890674560. Its totient is φ = 3389067360.

The previous prime is 11861735917. The next prime is 11861735957. The reversal of 11861735928 is 82953716811.

11861735928 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 7 ways as a sum of consecutive naturals, for example, 35302618 + ... + 35302953.

It is an arithmetic number, because the mean of its divisors is an integer number (1059083580).

Almost surely, 2^11861735928 is an apocalyptic number.

It is an amenable number.

11861735928 is an abundant number, since it is smaller than the sum of its proper divisors (22028938632).

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

11861735928 is a wasteful number, since it uses less digits than its factorization.

11861735928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70605587 (or 70605583 counting only the distinct ones).

The product of its digits is 725760, while the sum is 51.

The spelling of 11861735928 in words is "eleven billion, eight hundred sixty-one million, seven hundred thirty-five thousand, nine hundred twenty-eight".