78829865341 has 2 divisors, whose sum is σ = 78829865342. Its totient is φ = 78829865340.

The previous prime is 78829865333. The next prime is 78829865407. The reversal of 78829865341 is 14356892887.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48299292441 + 30530572900 = 219771^2 + 174730^2 .

It is a cyclic number.

It is not a de Polignac number, because 78829865341 - 2³ = 78829865333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78829865341.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78829865141) 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, 39414932670 + 39414932671.

It is an arithmetic number, because the mean of its divisors is an integer number (39414932671).

Almost surely, 2^78829865341 is an apocalyptic number.

It is an amenable number.

78829865341 is a deficient number, since it is larger than the sum of its proper divisors (1).

78829865341 is an equidigital number, since it uses as much as digits as its factorization.

78829865341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23224320, while the sum is 61.

The spelling of 78829865341 in words is "seventy-eight billion, eight hundred twenty-nine million, eight hundred sixty-five thousand, three hundred forty-one".