2780878622827 has 2 divisors, whose sum is σ = 2780878622828. Its totient is φ = 2780878622826.

The previous prime is 2780878622779. The next prime is 2780878622867. The reversal of 2780878622827 is 7282268780872.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2780878622827 - 2⁷ = 2780878622699 is a prime.

It is not a weakly prime, because it can be changed into another prime (2780878622867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390439311413 + 1390439311414.

It is an arithmetic number, because the mean of its divisors is an integer number (1390439311414).

Almost surely, 2^{2780878622827} is an apocalyptic number.

2780878622827 is a deficient number, since it is larger than the sum of its proper divisors (1).

2780878622827 is an equidigital number, since it uses as much as digits as its factorization.

2780878622827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 134873088, while the sum is 67.

The spelling of 2780878622827 in words is "two trillion, seven hundred eighty billion, eight hundred seventy-eight million, six hundred twenty-two thousand, eight hundred twenty-seven".