68057311 has 16 divisors (see below), whose sum is σ = 79073280. Its totient is φ = 57373920.

The previous prime is 68057303. The next prime is 68057329. The reversal of 68057311 is 11375086.

It is a cyclic number.

It is not a de Polignac number, because 68057311 - 2³ = 68057303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68057351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145500 + ... + 145966.

It is an arithmetic number, because the mean of its divisors is an integer number (4942080).

Almost surely, 2^68057311 is an apocalyptic number.

68057311 is a deficient number, since it is larger than the sum of its proper divisors (11015969).

68057311 is a wasteful number, since it uses less digits than its factorization.

68057311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 774.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 68057311 is about 8249.6855091573. The cubic root of 68057311 is about 408.2801464901.

The spelling of 68057311 in words is "sixty-eight million, fifty-seven thousand, three hundred eleven".