168192439036 has 12 divisors (see below), whose sum is σ = 294388930528. Its totient is φ = 84081316032.

The previous prime is 168192438907. The next prime is 168192439073. The reversal of 168192439036 is 630934291861.

It is a happy number.

It is a congruent number.

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, 3700461 + ... + 3745636.

Almost surely, 2^168192439036 is an apocalyptic number.

It is an amenable number.

168192439036 is a deficient number, since it is larger than the sum of its proper divisors (126196491492).

168192439036 is a wasteful number, since it uses less digits than its factorization.

168192439036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7451748 (or 7451746 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 168192439036 in words is "one hundred sixty-eight billion, one hundred ninety-two million, four hundred thirty-nine thousand, thirty-six".