16947888684 has 12 divisors (see below), whose sum is σ = 39545073624. Its totient is φ = 5649296224.

The previous prime is 16947888677. The next prime is 16947888799. The reversal of 16947888684 is 48688874961.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706162017 + ... + 706162040.

It is an arithmetic number, because the mean of its divisors is an integer number (3295422802).

Almost surely, 2^16947888684 is an apocalyptic number.

It is an amenable number.

16947888684 is an abundant number, since it is smaller than the sum of its proper divisors (22597184940).

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

16947888684 is a wasteful number, since it uses less digits than its factorization.

16947888684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412324064 (or 1412324062 counting only the distinct ones).

The product of its digits is 148635648, while the sum is 69.

It can be divided in two parts, 1694 and 7888684, that added together give a triangular number (7890378 = T₃₉₇₂).

The spelling of 16947888684 in words is "sixteen billion, nine hundred forty-seven million, eight hundred eighty-eight thousand, six hundred eighty-four".