11447780684 has 6 divisors (see below), whose sum is σ = 20033616204. Its totient is φ = 5723890340.

The previous prime is 11447780677. The next prime is 11447780689. The reversal of 11447780684 is 48608774411.

It is not an unprimeable number, because it can be changed into a prime (11447780689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1430972582 + ... + 1430972589.

It is an arithmetic number, because the mean of its divisors is an integer number (3338936034).

Almost surely, 2^11447780684 is an apocalyptic number.

It is an amenable number.

11447780684 is a deficient number, since it is larger than the sum of its proper divisors (8585835520).

11447780684 is a wasteful number, since it uses less digits than its factorization.

11447780684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861945175 (or 2861945173 counting only the distinct ones).

The product of its (nonzero) digits is 1204224, while the sum is 50.

The spelling of 11447780684 in words is "eleven billion, four hundred forty-seven million, seven hundred eighty thousand, six hundred eighty-four".