778259129149379 has 2 divisors, whose sum is σ = 778259129149380. Its totient is φ = 778259129149378.

The previous prime is 778259129149367. The next prime is 778259129149499. The reversal of 778259129149379 is 973941921952877.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 778259129149379 - 2²⁰ = 778259128100803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 778259129149297 and 778259129149306.

It is not a weakly prime, because it can be changed into another prime (778259129149309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389129564574689 + 389129564574690.

It is an arithmetic number, because the mean of its divisors is an integer number (389129564574690).

Almost surely, 2^{778259129149379} is an apocalyptic number.

778259129149379 is a deficient number, since it is larger than the sum of its proper divisors (1).

778259129149379 is an equidigital number, since it uses as much as digits as its factorization.

778259129149379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320812160, while the sum is 83.

The spelling of 778259129149379 in words is "seven hundred seventy-eight trillion, two hundred fifty-nine billion, one hundred twenty-nine million, one hundred forty-nine thousand, three hundred seventy-nine".