68315753 has 6 divisors (see below), whose sum is σ = 75091002. Its totient is φ = 62105120.

The previous prime is 68315747. The next prime is 68315759. The reversal of 68315753 is 35751386.

It is an interprime number because it is at equal distance from previous prime (68315747) and next prime (68315759).

It can be written as a sum of positive squares in only one way, i.e., 66797929 + 1517824 = 8173^2 + 1232^2 .

It is a de Polignac number, because none of the positive numbers 2^k-68315753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68315759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282176 + ... + 282417.

It is an arithmetic number, because the mean of its divisors is an integer number (12515167).

Almost surely, 2^68315753 is an apocalyptic number.

It is an amenable number.

68315753 is a deficient number, since it is larger than the sum of its proper divisors (6775249).

68315753 is a wasteful number, since it uses less digits than its factorization.

68315753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564615 (or 564604 counting only the distinct ones).

The product of its digits is 75600, while the sum is 38.

The square root of 68315753 is about 8265.3344154971. The cubic root of 68315753 is about 408.7962970375.

The spelling of 68315753 in words is "sixty-eight million, three hundred fifteen thousand, seven hundred fifty-three".