780342345179 has 2 divisors, whose sum is σ = 780342345180. Its totient is φ = 780342345178.

The previous prime is 780342345143. The next prime is 780342345197. The reversal of 780342345179 is 971543243087.

Together with next prime (780342345197) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 780342345179 - 2¹² = 780342341083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 780342345179.

It is not a weakly prime, because it can be changed into another prime (780342345479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 390171172589 + 390171172590.

It is an arithmetic number, because the mean of its divisors is an integer number (390171172590).

Almost surely, 2^780342345179 is an apocalyptic number.

780342345179 is a deficient number, since it is larger than the sum of its proper divisors (1).

780342345179 is an equidigital number, since it uses as much as digits as its factorization.

780342345179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5080320, while the sum is 53.

The spelling of 780342345179 in words is "seven hundred eighty billion, three hundred forty-two million, three hundred forty-five thousand, one hundred seventy-nine".