845094378259 has 2 divisors, whose sum is σ = 845094378260. Its totient is φ = 845094378258.

The previous prime is 845094378223. The next prime is 845094378283. The reversal of 845094378259 is 952873490548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 845094378259 - 2¹³ = 845094370067 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 845094378259.

It is not a weakly prime, because it can be changed into another prime (845094378559) 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, 422547189129 + 422547189130.

It is an arithmetic number, because the mean of its divisors is an integer number (422547189130).

Almost surely, 2^845094378259 is an apocalyptic number.

845094378259 is a deficient number, since it is larger than the sum of its proper divisors (1).

845094378259 is an equidigital number, since it uses as much as digits as its factorization.

845094378259 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87091200, while the sum is 64.

The spelling of 845094378259 in words is "eight hundred forty-five billion, ninety-four million, three hundred seventy-eight thousand, two hundred fifty-nine".