68319049 has 2 divisors, whose sum is σ = 68319050. Its totient is φ = 68319048.

The previous prime is 68319019. The next prime is 68319077. The reversal of 68319049 is 94091386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65496649 + 2822400 = 8093^2 + 1680^2 .

It is a cyclic number.

It is not a de Polignac number, because 68319049 - 2²³ = 59930441 is a prime.

It is not a weakly prime, because it can be changed into another prime (68319019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34159524 + 34159525.

It is an arithmetic number, because the mean of its divisors is an integer number (34159525).

Almost surely, 2^68319049 is an apocalyptic number.

It is an amenable number.

68319049 is a deficient number, since it is larger than the sum of its proper divisors (1).

68319049 is an equidigital number, since it uses as much as digits as its factorization.

68319049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 68319049 is about 8265.5338000640. The cubic root of 68319049 is about 408.8028712700.

The spelling of 68319049 in words is "sixty-eight million, three hundred nineteen thousand, forty-nine".