68157718 has 8 divisors (see below), whose sum is σ = 102271680. Its totient is φ = 34067160.

The previous prime is 68157701. The next prime is 68157721. The reversal of 68157718 is 81775186.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7828 + ... + 14056.

It is an arithmetic number, because the mean of its divisors is an integer number (12783960).

Almost surely, 2^68157718 is an apocalyptic number.

68157718 is a deficient number, since it is larger than the sum of its proper divisors (34113962).

68157718 is a wasteful number, since it uses less digits than its factorization.

68157718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11702.

The product of its digits is 94080, while the sum is 43.

The square root of 68157718 is about 8255.7687709867. The cubic root of 68157718 is about 408.4808304949.

The spelling of 68157718 in words is "sixty-eight million, one hundred fifty-seven thousand, seven hundred eighteen".