319678882069 has 2 divisors, whose sum is σ = 319678882070. Its totient is φ = 319678882068.

The previous prime is 319678882049. The next prime is 319678882073. The reversal of 319678882069 is 960288876913.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200222241444 + 119456640625 = 447462^2 + 345625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319678882069 is a prime.

It is a super-2 number, since 2×319678882069² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 319678881995 and 319678882013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (319678882049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159839441034 + 159839441035.

It is an arithmetic number, because the mean of its divisors is an integer number (159839441035).

Almost surely, 2^319678882069 is an apocalyptic number.

It is an amenable number.

319678882069 is a deficient number, since it is larger than the sum of its proper divisors (1).

319678882069 is an equidigital number, since it uses as much as digits as its factorization.

319678882069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62705664, while the sum is 67.

The spelling of 319678882069 in words is "three hundred nineteen billion, six hundred seventy-eight million, eight hundred eighty-two thousand, sixty-nine".