68368650 has 192 divisors, whose sum is σ = 214272000. Its totient is φ = 14065920.

The previous prime is 68368591. The next prime is 68368681. The reversal of 68368650 is 5686386.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 458776 + ... + 458924.

It is an arithmetic number, because the mean of its divisors is an integer number (1116000).

Almost surely, 2^68368650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68368650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107136000).

68368650 is an abundant number, since it is smaller than the sum of its proper divisors (145903350).

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

68368650 is a wasteful number, since it uses less digits than its factorization.

68368650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 68368650 is about 8268.5337273304. The cubic root of 68368650 is about 408.9017803655.

The spelling of 68368650 in words is "sixty-eight million, three hundred sixty-eight thousand, six hundred fifty".