68311386 has 48 divisors (see below), whose sum is σ = 173890080. Its totient is φ = 19107360.

The previous prime is 68311349. The next prime is 68311417.

68311386 is nontrivially palindromic in base 10.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 68311386.

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 23 ways as a sum of consecutive naturals, for example, 10696 + ... + 15843.

It is an arithmetic number, because the mean of its divisors is an integer number (3622710).

Almost surely, 2^68311386 is an apocalyptic number.

68311386 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68311386 is an abundant number, since it is smaller than the sum of its proper divisors (105578694).

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

68311386 is a wasteful number, since it uses less digits than its factorization.

68311386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26571 (or 26568 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 68311386 is about 8265.0702356362. The cubic root of 68311386 is about 408.7875862527.

The spelling of 68311386 in words is "sixty-eight million, three hundred eleven thousand, three hundred eighty-six".