44444399977 has 2 divisors, whose sum is σ = 44444399978. Its totient is φ = 44444399976.

The previous prime is 44444399947. The next prime is 44444399983. The reversal of 44444399977 is 77999344444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42800989456 + 1643410521 = 206884^2 + 40539^2 .

It is a cyclic number.

It is not a de Polignac number, because 44444399977 - 2¹¹ = 44444397929 is a prime.

It is not a weakly prime, because it can be changed into another prime (44444399947) 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, 22222199988 + 22222199989.

It is an arithmetic number, because the mean of its divisors is an integer number (22222199989).

Almost surely, 2^44444399977 is an apocalyptic number.

It is an amenable number.

44444399977 is a deficient number, since it is larger than the sum of its proper divisors (1).

44444399977 is an equidigital number, since it uses as much as digits as its factorization.

44444399977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109734912, while the sum is 64.

The spelling of 44444399977 in words is "forty-four billion, four hundred forty-four million, three hundred ninety-nine thousand, nine hundred seventy-seven".