11780866860 has 48 divisors (see below), whose sum is σ = 37698775296. Its totient is φ = 2692769472.

The previous prime is 11780866841. The next prime is 11780866883. The reversal of 11780866860 is 6866808711.

11780866860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 14024422 + ... + 14025261.

It is an arithmetic number, because the mean of its divisors is an integer number (785391152).

Almost surely, 2^11780866860 is an apocalyptic number.

11780866860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11780866860 is an abundant number, since it is smaller than the sum of its proper divisors (25917908436).

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

11780866860 is a wasteful number, since it uses less digits than its factorization.

11780866860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28049702 (or 28049700 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 51.

The spelling of 11780866860 in words is "eleven billion, seven hundred eighty million, eight hundred sixty-six thousand, eight hundred sixty".