168894462917 has 16 divisors (see below), whose sum is σ = 173638598400. Its totient is φ = 164201576448.

The previous prime is 168894462889. The next prime is 168894462923. The reversal of 168894462917 is 719264498861.

It is a cyclic number.

It is not a de Polignac number, because 168894462917 - 2⁶ = 168894462853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168894462977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4772753 + ... + 4808009.

It is an arithmetic number, because the mean of its divisors is an integer number (10852412400).

Almost surely, 2^168894462917 is an apocalyptic number.

It is an amenable number.

168894462917 is a deficient number, since it is larger than the sum of its proper divisors (4744135483).

168894462917 is a wasteful number, since it uses less digits than its factorization.

168894462917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35980.

The product of its digits is 41803776, while the sum is 65.

The spelling of 168894462917 in words is "one hundred sixty-eight billion, eight hundred ninety-four million, four hundred sixty-two thousand, nine hundred seventeen".