68058381 has 4 divisors (see below), whose sum is σ = 90744512. Its totient is φ = 45372252.

The previous prime is 68058377. The next prime is 68058391. The reversal of 68058381 is 18385086.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 68058381 - 2² = 68058377 is a prime.

It is a super-2 number, since 2×68058381² = 9263886448682322, 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 (68058391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11343061 + ... + 11343066.

It is an arithmetic number, because the mean of its divisors is an integer number (22686128).

Almost surely, 2^68058381 is an apocalyptic number.

It is an amenable number.

68058381 is a deficient number, since it is larger than the sum of its proper divisors (22686131).

68058381 is a wasteful number, since it uses less digits than its factorization.

68058381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22686130.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 68058381 is about 8249.7503598594. The cubic root of 68058381 is about 408.2822861449.

The spelling of 68058381 in words is "sixty-eight million, fifty-eight thousand, three hundred eighty-one".