68334911 has 4 divisors (see below), whose sum is σ = 68355000. Its totient is φ = 68314824.

The previous prime is 68334907. The next prime is 68334919. The reversal of 68334911 is 11943386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68334911 - 2² = 68334907 is a prime.

It is a super-2 number, since 2×68334911² = 9339320122755842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68334919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3536 + ... + 12213.

It is an arithmetic number, because the mean of its divisors is an integer number (17088750).

Almost surely, 2^68334911 is an apocalyptic number.

68334911 is a deficient number, since it is larger than the sum of its proper divisors (20089).

68334911 is a wasteful number, since it uses less digits than its factorization.

68334911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20088.

The product of its digits is 15552, while the sum is 35.

The square root of 68334911 is about 8266.4932710310. The cubic root of 68334911 is about 408.8345068068.

The spelling of 68334911 in words is "sixty-eight million, three hundred thirty-four thousand, nine hundred eleven".