83431694168 has 8 divisors (see below), whose sum is σ = 156434426580. Its totient is φ = 41715847080.

The previous prime is 83431694167. The next prime is 83431694191. The reversal of 83431694168 is 86149613438.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83431694167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5214480878 + ... + 5214480893.

Almost surely, 2^83431694168 is an apocalyptic number.

It is an amenable number.

83431694168 is a deficient number, since it is larger than the sum of its proper divisors (73002732412).

83431694168 is a wasteful number, since it uses less digits than its factorization.

83431694168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10428961777 (or 10428961773 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 53.

The spelling of 83431694168 in words is "eighty-three billion, four hundred thirty-one million, six hundred ninety-four thousand, one hundred sixty-eight".