168389926530 has 64 divisors (see below), whose sum is σ = 461905182720. Its totient is φ = 38486153664.

The previous prime is 168389926513. The next prime is 168389926559. The reversal of 168389926530 is 35629983861.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3850447 + ... + 3893933.

It is an arithmetic number, because the mean of its divisors is an integer number (7217268480).

Almost surely, 2^168389926530 is an apocalyptic number.

168389926530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168389926530 is an abundant number, since it is smaller than the sum of its proper divisors (293515256190).

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

168389926530 is a wasteful number, since it uses less digits than its factorization.

168389926530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61943.

The product of its (nonzero) digits is 16796160, while the sum is 60.

The spelling of 168389926530 in words is "one hundred sixty-eight billion, three hundred eighty-nine million, nine hundred twenty-six thousand, five hundred thirty".