68257726 has 4 divisors (see below), whose sum is σ = 102386592. Its totient is φ = 34128862.

The previous prime is 68257723. The next prime is 68257729. The reversal of 68257726 is 62775286.

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

It is an interprime number because it is at equal distance from previous prime (68257723) and next prime (68257729).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68257723) 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 as a sum of consecutive naturals, namely, 17064430 + ... + 17064433.

It is an arithmetic number, because the mean of its divisors is an integer number (25596648).

Almost surely, 2^68257726 is an apocalyptic number.

68257726 is a deficient number, since it is larger than the sum of its proper divisors (34128866).

68257726 is a wasteful number, since it uses less digits than its factorization.

68257726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34128865.

The product of its digits is 282240, while the sum is 43.

The square root of 68257726 is about 8261.8234064884. The cubic root of 68257726 is about 408.6805211924.

The spelling of 68257726 in words is "sixty-eight million, two hundred fifty-seven thousand, seven hundred twenty-six".