68311363 has 4 divisors (see below), whose sum is σ = 68446080. Its totient is φ = 68176648.

The previous prime is 68311349. The next prime is 68311417. The reversal of 68311363 is 36311386.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68311363 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68317363) 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, 66595 + ... + 67612.

It is an arithmetic number, because the mean of its divisors is an integer number (17111520).

Almost surely, 2^68311363 is an apocalyptic number.

68311363 is a deficient number, since it is larger than the sum of its proper divisors (134717).

68311363 is a wasteful number, since it uses less digits than its factorization.

68311363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134716.

The product of its digits is 7776, while the sum is 31.

The square root of 68311363 is about 8265.0688442384. The cubic root of 68311363 is about 408.7875403740.

The spelling of 68311363 in words is "sixty-eight million, three hundred eleven thousand, three hundred sixty-three".