68577338253313 has 2 divisors, whose sum is σ = 68577338253314. Its totient is φ = 68577338253312.

The previous prime is 68577338253239. The next prime is 68577338253341. The reversal of 68577338253313 is 31335283377586.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68257867996224 + 319470257089 = 8261832^2 + 565217^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68577338253313 is a prime.

It is not a weakly prime, because it can be changed into another prime (68577338253353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34288669126656 + 34288669126657.

It is an arithmetic number, because the mean of its divisors is an integer number (34288669126657).

Almost surely, 2^{68577338253313} is an apocalyptic number.

It is an amenable number.

68577338253313 is a deficient number, since it is larger than the sum of its proper divisors (1).

68577338253313 is an equidigital number, since it uses as much as digits as its factorization.

68577338253313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 228614400, while the sum is 64.

The spelling of 68577338253313 in words is "sixty-eight trillion, five hundred seventy-seven billion, three hundred thirty-eight million, two hundred fifty-three thousand, three hundred thirteen".