44444455555457 has 2 divisors, whose sum is σ = 44444455555458. Its totient is φ = 44444455555456.

The previous prime is 44444455555453. The next prime is 44444455555501. The reversal of 44444455555457 is 75455555444444.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28933468872256 + 15510986683201 = 5378984^2 + 3938399^2 .

It is a cyclic number.

It is not a de Polignac number, because 44444455555457 - 2² = 44444455555453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 44444455555393 and 44444455555402.

It is not a weakly prime, because it can be changed into another prime (44444455555453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22222227777728 + 22222227777729.

It is an arithmetic number, because the mean of its divisors is an integer number (22222227777729).

Almost surely, 2^{44444455555457} is an apocalyptic number.

It is an amenable number.

44444455555457 is a deficient number, since it is larger than the sum of its proper divisors (1).

44444455555457 is an equidigital number, since it uses as much as digits as its factorization.

44444455555457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792000000, while the sum is 65.

The spelling of 44444455555457 in words is "forty-four trillion, four hundred forty-four billion, four hundred fifty-five million, five hundred fifty-five thousand, four hundred fifty-seven".