68828249287373 has 2 divisors, whose sum is σ = 68828249287374. Its totient is φ = 68828249287372.

The previous prime is 68828249287361. The next prime is 68828249287379. The reversal of 68828249287373 is 37378294282886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45401749038724 + 23426500248649 = 6738082^2 + 4840093^2 .

It is a cyclic number.

It is not a de Polignac number, because 68828249287373 - 2⁶ = 68828249287309 is a prime.

It is a super-2 number, since 2×68828249287373² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68828249287294 and 68828249287303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68828249287379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34414124643686 + 34414124643687.

It is an arithmetic number, because the mean of its divisors is an integer number (34414124643687).

Almost surely, 2^{68828249287373} is an apocalyptic number.

It is an amenable number.

68828249287373 is a deficient number, since it is larger than the sum of its proper divisors (1).

68828249287373 is an equidigital number, since it uses as much as digits as its factorization.

68828249287373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3121348608, while the sum is 77.

The spelling of 68828249287373 in words is "sixty-eight trillion, eight hundred twenty-eight billion, two hundred forty-nine million, two hundred eighty-seven thousand, three hundred seventy-three".