11719953646 has 16 divisors (see below), whose sum is σ = 19423351584. Its totient is φ = 5275477504.

The previous prime is 11719953613. The next prime is 11719953647. The reversal of 11719953646 is 64635991711.

11719953646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 11719953593 and 11719953602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11719953647) 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, 7492795 + ... + 7494358.

It is an arithmetic number, because the mean of its divisors is an integer number (1213959474).

Almost surely, 2^11719953646 is an apocalyptic number.

11719953646 is a deficient number, since it is larger than the sum of its proper divisors (7703397938).

11719953646 is a wasteful number, since it uses less digits than its factorization.

11719953646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14987195.

The product of its digits is 1224720, while the sum is 52.

The spelling of 11719953646 in words is "eleven billion, seven hundred nineteen million, nine hundred fifty-three thousand, six hundred forty-six".