14111809728 has 56 divisors (see below), whose sum is σ = 37373161728. Its totient is φ = 4699443456.

The previous prime is 14111809727. The next prime is 14111809759. The reversal of 14111809728 is 82790811141.

It is a self number, because there is not a number n which added to its sum of digits gives 14111809728.

It is not an unprimeable number, because it can be changed into a prime (14111809727) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169525 + ... + 238667.

It is an arithmetic number, because the mean of its divisors is an integer number (667377888).

Almost surely, 2^14111809728 is an apocalyptic number.

It is an amenable number.

14111809728 is an abundant number, since it is smaller than the sum of its proper divisors (23261352000).

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

14111809728 is a wasteful number, since it uses less digits than its factorization.

14111809728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70221 (or 70211 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 42.

The spelling of 14111809728 in words is "fourteen billion, one hundred eleven million, eight hundred nine thousand, seven hundred twenty-eight".