68319650 has 96 divisors (see below), whose sum is σ = 154275840. Its totient is φ = 22014720.

The previous prime is 68319613. The next prime is 68319661. The reversal of 68319650 is 5691386.

It is a super-2 number, since 2×68319650² = 9335149152245000, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 537887 + ... + 538013.

It is an arithmetic number, because the mean of its divisors is an integer number (1607040).

Almost surely, 2^68319650 is an apocalyptic number.

68319650 is an abundant number, since it is smaller than the sum of its proper divisors (85956190).

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

68319650 is a wasteful number, since it uses less digits than its factorization.

68319650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 68319650 is about 8265.5701557727. The cubic root of 68319650 is about 408.8040700075.

The spelling of 68319650 in words is "sixty-eight million, three hundred nineteen thousand, six hundred fifty".