68359451 has 2 divisors, whose sum is σ = 68359452. Its totient is φ = 68359450.

The previous prime is 68359441. The next prime is 68359457. The reversal of 68359451 is 15495386.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68359451 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68359399 and 68359408.

It is not a weakly prime, because it can be changed into another prime (68359457) 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 as a sum of consecutive naturals, namely, 34179725 + 34179726.

It is an arithmetic number, because the mean of its divisors is an integer number (34179726).

Almost surely, 2^68359451 is an apocalyptic number.

68359451 is a deficient number, since it is larger than the sum of its proper divisors (1).

68359451 is an equidigital number, since it uses as much as digits as its factorization.

68359451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The square root of 68359451 is about 8267.9774431236. The cubic root of 68359451 is about 408.8834403018.

The spelling of 68359451 in words is "sixty-eight million, three hundred fifty-nine thousand, four hundred fifty-one".