444294665777 has 2 divisors, whose sum is σ = 444294665778. Its totient is φ = 444294665776.

The previous prime is 444294665723. The next prime is 444294665813. The reversal of 444294665777 is 777566492444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 404596494241 + 39698171536 = 636079^2 + 199244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444294665777 is a prime.

It is a super-2 number, since 2×444294665777² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (444294665377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222147332888 + 222147332889.

It is an arithmetic number, because the mean of its divisors is an integer number (222147332889).

Almost surely, 2^444294665777 is an apocalyptic number.

It is an amenable number.

444294665777 is a deficient number, since it is larger than the sum of its proper divisors (1).

444294665777 is an equidigital number, since it uses as much as digits as its factorization.

444294665777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 284497920, while the sum is 65.

The spelling of 444294665777 in words is "four hundred forty-four billion, two hundred ninety-four million, six hundred sixty-five thousand, seven hundred seventy-seven".