11728337782 has 16 divisors (see below), whose sum is σ = 20189153952. Its totient is φ = 5005572480.

The previous prime is 11728337741. The next prime is 11728337801. The reversal of 11728337782 is 28773382711.

11728337782 is digitally balanced in base 5, 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1734673 + ... + 1741420.

It is an arithmetic number, because the mean of its divisors is an integer number (1261822122).

Almost surely, 2^11728337782 is an apocalyptic number.

11728337782 is a deficient number, since it is larger than the sum of its proper divisors (8460816170).

11728337782 is a wasteful number, since it uses less digits than its factorization.

11728337782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476343.

The product of its digits is 790272, while the sum is 49.

The spelling of 11728337782 in words is "eleven billion, seven hundred twenty-eight million, three hundred thirty-seven thousand, seven hundred eighty-two".