68738757 has 8 divisors (see below), whose sum is σ = 91857600. Its totient is φ = 45722880.

The previous prime is 68738753. The next prime is 68738773. The reversal of 68738757 is 75783786.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68738757 - 2² = 68738753 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68738753) 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 7 ways as a sum of consecutive naturals, for example, 24169 + ... + 26862.

It is an arithmetic number, because the mean of its divisors is an integer number (11482200).

Almost surely, 2^68738757 is an apocalyptic number.

It is an amenable number.

68738757 is a deficient number, since it is larger than the sum of its proper divisors (23118843).

68738757 is a wasteful number, since it uses less digits than its factorization.

68738757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51483.

The product of its digits is 1975680, while the sum is 51.

The square root of 68738757 is about 8290.8839697586. The cubic root of 68738757 is about 409.6383028610.

The spelling of 68738757 in words is "sixty-eight million, seven hundred thirty-eight thousand, seven hundred fifty-seven".