78561119339 has 2 divisors, whose sum is σ = 78561119340. Its totient is φ = 78561119338.

The previous prime is 78561119333. The next prime is 78561119347. The reversal of 78561119339 is 93391116587.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 78561119339 - 2²⁸ = 78292683883 is a prime.

It is not a weakly prime, because it can be changed into another prime (78561119333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39280559669 + 39280559670.

It is an arithmetic number, because the mean of its divisors is an integer number (39280559670).

Almost surely, 2^78561119339 is an apocalyptic number.

78561119339 is a deficient number, since it is larger than the sum of its proper divisors (1).

78561119339 is an equidigital number, since it uses as much as digits as its factorization.

78561119339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1224720, while the sum is 53.

The spelling of 78561119339 in words is "seventy-eight billion, five hundred sixty-one million, one hundred nineteen thousand, three hundred thirty-nine".