78841600529 has 2 divisors, whose sum is σ = 78841600530. Its totient is φ = 78841600528.

The previous prime is 78841600507. The next prime is 78841600531. The reversal of 78841600529 is 92500614887.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77827050625 + 1014549904 = 278975^2 + 31852^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78841600529 is a prime.

Together with 78841600531, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (78841600829) 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, 39420800264 + 39420800265.

It is an arithmetic number, because the mean of its divisors is an integer number (39420800265).

Almost surely, 2^78841600529 is an apocalyptic number.

It is an amenable number.

78841600529 is a deficient number, since it is larger than the sum of its proper divisors (1).

78841600529 is an equidigital number, since it uses as much as digits as its factorization.

78841600529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 967680, while the sum is 50.

The spelling of 78841600529 in words is "seventy-eight billion, eight hundred forty-one million, six hundred thousand, five hundred twenty-nine".