168729650 has 24 divisors (see below), whose sum is σ = 314592960. Its totient is φ = 67329360.

The previous prime is 168729623. The next prime is 168729653. The reversal of 168729650 is 56927861.

168729650 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (168729653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18107 + ... + 25793.

It is an arithmetic number, because the mean of its divisors is an integer number (13108040).

Almost surely, 2^168729650 is an apocalyptic number.

168729650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168729650 is a deficient number, since it is larger than the sum of its proper divisors (145863310).

168729650 is a wasteful number, since it uses less digits than its factorization.

168729650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8138 (or 8133 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 168729650 is about 12989.5977612858. The cubic root of 168729650 is about 552.5825105576.

The spelling of 168729650 in words is "one hundred sixty-eight million, seven hundred twenty-nine thousand, six hundred fifty".