168849412237 has 16 divisors (see below), whose sum is σ = 186446886912. Its totient is φ = 151636907520.

The previous prime is 168849412229. The next prime is 168849412243. The reversal of 168849412237 is 732214948861.

It is a cyclic number.

It is not a de Polignac number, because 168849412237 - 2³ = 168849412229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168849412297) 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, 66133 + ... + 584869.

It is an arithmetic number, because the mean of its divisors is an integer number (11652930432).

Almost surely, 2^168849412237 is an apocalyptic number.

It is an amenable number.

168849412237 is a deficient number, since it is larger than the sum of its proper divisors (17597474675).

168849412237 is a wasteful number, since it uses less digits than its factorization.

168849412237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519108.

The product of its digits is 4644864, while the sum is 55.

The spelling of 168849412237 in words is "one hundred sixty-eight billion, eight hundred forty-nine million, four hundred twelve thousand, two hundred thirty-seven".