2780505500239 has 2 divisors, whose sum is σ = 2780505500240. Its totient is φ = 2780505500238.

The previous prime is 2780505500197. The next prime is 2780505500323. The reversal of 2780505500239 is 9320055050872.

2780505500239 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2780505500239 - 2¹⁹ = 2780504975951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2780505501239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390252750119 + 1390252750120.

It is an arithmetic number, because the mean of its divisors is an integer number (1390252750120).

Almost surely, 2^{2780505500239} is an apocalyptic number.

2780505500239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2780505500239 is an equidigital number, since it uses as much as digits as its factorization.

2780505500239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756000, while the sum is 46.

The spelling of 2780505500239 in words is "two trillion, seven hundred eighty billion, five hundred five million, five hundred thousand, two hundred thirty-nine".