68356780 has 12 divisors (see below), whose sum is σ = 143549280. Its totient is φ = 27342704.

The previous prime is 68356777. The next prime is 68356793. The reversal of 68356780 is 8765386.

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, 1708900 + ... + 1708939.

It is an arithmetic number, because the mean of its divisors is an integer number (11962440).

Almost surely, 2^68356780 is an apocalyptic number.

It is an amenable number.

68356780 is an abundant number, since it is smaller than the sum of its proper divisors (75192500).

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

68356780 is a wasteful number, since it uses less digits than its factorization.

68356780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417848 (or 3417846 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 68356780 is about 8267.8159147383. The cubic root of 68356780 is about 408.8781148158.

The spelling of 68356780 in words is "sixty-eight million, three hundred fifty-six thousand, seven hundred eighty".