4458366491 has 2 divisors, whose sum is σ = 4458366492. Its totient is φ = 4458366490.

The previous prime is 4458366389. The next prime is 4458366547. The reversal of 4458366491 is 1946638544.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4458366491 - 2¹⁰ = 4458365467 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (4458365491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2229183245 + 2229183246.

It is an arithmetic number, because the mean of its divisors is an integer number (2229183246).

Almost surely, 2^4458366491 is an apocalyptic number.

4458366491 is a deficient number, since it is larger than the sum of its proper divisors (1).

4458366491 is an equidigital number, since it uses as much as digits as its factorization.

4458366491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2488320, while the sum is 50.

The square root of 4458366491 is about 66771.0003744140. Note that the first 3 decimals coincide. The cubic root of 4458366491 is about 1645.8563294298.

Subtracting from 4458366491 its sum of digits (50), we obtain a square (4458366441 = 66771²).

The spelling of 4458366491 in words is "four billion, four hundred fifty-eight million, three hundred sixty-six thousand, four hundred ninety-one".