1068720757 has 8 divisors (see below), whose sum is σ = 1151184384. Its totient is φ = 986293488.

The previous prime is 1068720743. The next prime is 1068720773. The reversal of 1068720757 is 7570278601.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1068720757 is a prime.

It is a super-2 number, since 2×1068720757² = 2284328112885306098, 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 (1068720707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106248 + ... + 115870.

It is an arithmetic number, because the mean of its divisors is an integer number (143898048).

Almost surely, 2^1068720757 is an apocalyptic number.

It is an amenable number.

1068720757 is a deficient number, since it is larger than the sum of its proper divisors (82463627).

1068720757 is an equidigital number, since it uses as much as digits as its factorization.

1068720757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18179.

The product of its (nonzero) digits is 164640, while the sum is 43.

The square root of 1068720757 is about 32691.2948198752. The cubic root of 1068720757 is about 1022.4013513069.

The spelling of 1068720757 in words is "one billion, sixty-eight million, seven hundred twenty thousand, seven hundred fifty-seven".