4494785389 has 2 divisors, whose sum is σ = 4494785390. Its totient is φ = 4494785388.

The previous prime is 4494785381. The next prime is 4494785413. The reversal of 4494785389 is 9835874944.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4308872164 + 185913225 = 65642^2 + 13635^2 .

It is a cyclic number.

It is not a de Polignac number, because 4494785389 - 2³ = 4494785381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4494785381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2247392694 + 2247392695.

It is an arithmetic number, because the mean of its divisors is an integer number (2247392695).

Almost surely, 2^4494785389 is an apocalyptic number.

It is an amenable number.

4494785389 is a deficient number, since it is larger than the sum of its proper divisors (1).

4494785389 is an equidigital number, since it uses as much as digits as its factorization.

4494785389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34836480, while the sum is 61.

The square root of 4494785389 is about 67043.1606429768. The cubic root of 4494785389 is about 1650.3256643994.

The spelling of 4494785389 in words is "four billion, four hundred ninety-four million, seven hundred eighty-five thousand, three hundred eighty-nine".