2778584095823 has 2 divisors, whose sum is σ = 2778584095824. Its totient is φ = 2778584095822.

The previous prime is 2778584095753. The next prime is 2778584095831. The reversal of 2778584095823 is 3285904858772.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2778584095823 - 2¹⁸ = 2778583833679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2778584095853) 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, 1389292047911 + 1389292047912.

It is an arithmetic number, because the mean of its divisors is an integer number (1389292047912).

Almost surely, 2^{2778584095823} is an apocalyptic number.

2778584095823 is a deficient number, since it is larger than the sum of its proper divisors (1).

2778584095823 is an equidigital number, since it uses as much as digits as its factorization.

2778584095823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270950400, while the sum is 68.

The spelling of 2778584095823 in words is "two trillion, seven hundred seventy-eight billion, five hundred eighty-four million, ninety-five thousand, eight hundred twenty-three".