2044775778011 has 2 divisors, whose sum is σ = 2044775778012. Its totient is φ = 2044775778010.

The previous prime is 2044775777983. The next prime is 2044775778041. The reversal of 2044775778011 is 1108775774402.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2044775778011 is a prime.

It is a super-4 number, since 4×2044775778011⁴ (a number of 50 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (2044775778041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022387889005 + 1022387889006.

It is an arithmetic number, because the mean of its divisors is an integer number (1022387889006).

Almost surely, 2^{2044775778011} is an apocalyptic number.

2044775778011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2044775778011 is an equidigital number, since it uses as much as digits as its factorization.

2044775778011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3073280, while the sum is 53.

The spelling of 2044775778011 in words is "two trillion, forty-four billion, seven hundred seventy-five million, seven hundred seventy-eight thousand, eleven".