4144454491 has 2 divisors, whose sum is σ = 4144454492. Its totient is φ = 4144454490.

The previous prime is 4144454473. The next prime is 4144454507. The reversal of 4144454491 is 1944544414.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4144454491 - 2⁵ = 4144454459 is a prime.

It is not a weakly prime, because it can be changed into another prime (4144454411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072227245 + 2072227246.

It is an arithmetic number, because the mean of its divisors is an integer number (2072227246).

Almost surely, 2^4144454491 is an apocalyptic number.

4144454491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4144454491 is an equidigital number, since it uses as much as digits as its factorization.

4144454491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 184320, while the sum is 40.

The square root of 4144454491 is about 64377.4377480185. The cubic root of 4144454491 is about 1606.2844621573.

The spelling of 4144454491 in words is "four billion, one hundred forty-four million, four hundred fifty-four thousand, four hundred ninety-one".