16894147968 has 80 divisors (see below), whose sum is σ = 50276741460. Its totient is φ = 5631379200.

The previous prime is 16894147967. The next prime is 16894147981. The reversal of 16894147968 is 86974149861.

16894147968 is a `hidden beast` number, since 1 + 68 + 9 + 41 + 479 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16894147967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 804358 + ... + 825093.

Almost surely, 2^16894147968 is an apocalyptic number.

16894147968 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16894147968 is an abundant number, since it is smaller than the sum of its proper divisors (33382593492).

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

16894147968 is an equidigital number, since it uses as much as digits as its factorization.

16894147968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1629477 (or 1629456 counting only the distinct ones).

The product of its digits is 20901888, while the sum is 63.

The spelling of 16894147968 in words is "sixteen billion, eight hundred ninety-four million, one hundred forty-seven thousand, nine hundred sixty-eight".