319678882049 has 2 divisors, whose sum is σ = 319678882050. Its totient is φ = 319678882048.

The previous prime is 319678882043. The next prime is 319678882069. The reversal of 319678882049 is 940288876913.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307448070400 + 12230811649 = 554480^2 + 110593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319678882049 is a prime.

It is not a weakly prime, because it can be changed into another prime (319678882043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159839441024 + 159839441025.

It is an arithmetic number, because the mean of its divisors is an integer number (159839441025).

Almost surely, 2^319678882049 is an apocalyptic number.

It is an amenable number.

319678882049 is a deficient number, since it is larger than the sum of its proper divisors (1).

319678882049 is an equidigital number, since it uses as much as digits as its factorization.

319678882049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41803776, while the sum is 65.

The spelling of 319678882049 in words is "three hundred nineteen billion, six hundred seventy-eight million, eight hundred eighty-two thousand, forty-nine".