4194566489 has 2 divisors, whose sum is σ = 4194566490. Its totient is φ = 4194566488.

The previous prime is 4194566413. The next prime is 4194566501. The reversal of 4194566489 is 9846654914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2650705225 + 1543861264 = 51485^2 + 39292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4194566489 is a prime.

It is not a weakly prime, because it can be changed into another prime (4194526489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2097283244 + 2097283245.

It is an arithmetic number, because the mean of its divisors is an integer number (2097283245).

Almost surely, 2^4194566489 is an apocalyptic number.

It is an amenable number.

4194566489 is a deficient number, since it is larger than the sum of its proper divisors (1).

4194566489 is an equidigital number, since it uses as much as digits as its factorization.

4194566489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 56.

The square root of 4194566489 is about 64765.4729697854. The cubic root of 4194566489 is about 1612.7325852755.

The spelling of 4194566489 in words is "four billion, one hundred ninety-four million, five hundred sixty-six thousand, four hundred eighty-nine".