2044775777399 has 2 divisors, whose sum is σ = 2044775777400. Its totient is φ = 2044775777398.

The previous prime is 2044775777353. The next prime is 2044775777413. The reversal of 2044775777399 is 9937775774402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2044775777399 is a prime.

It is a super-2 number, since 2×2044775777399² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2044775777899) 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, 1022387888699 + 1022387888700.

It is an arithmetic number, because the mean of its divisors is an integer number (1022387888700).

Almost surely, 2^{2044775777399} is an apocalyptic number.

2044775777399 is a deficient number, since it is larger than the sum of its proper divisors (1).

2044775777399 is an equidigital number, since it uses as much as digits as its factorization.

2044775777399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653456160, while the sum is 71.

The spelling of 2044775777399 in words is "two trillion, forty-four billion, seven hundred seventy-five million, seven hundred seventy-seven thousand, three hundred ninety-nine".