4889477809 has 2 divisors, whose sum is σ = 4889477810. Its totient is φ = 4889477808.

The previous prime is 4889477779. The next prime is 4889477819. The reversal of 4889477809 is 9087749884.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4791408400 + 98069409 = 69220^2 + 9903^2 .

It is a cyclic number.

It is not a de Polignac number, because 4889477809 - 2²¹ = 4887380657 is a prime.

It is not a weakly prime, because it can be changed into another prime (4889477819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2444738904 + 2444738905.

It is an arithmetic number, because the mean of its divisors is an integer number (2444738905).

Almost surely, 2^4889477809 is an apocalyptic number.

It is an amenable number.

4889477809 is a deficient number, since it is larger than the sum of its proper divisors (1).

4889477809 is an equidigital number, since it uses as much as digits as its factorization.

4889477809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32514048, while the sum is 64.

The square root of 4889477809 is about 69924.8011008970. The cubic root of 4889477809 is about 1697.2826031619.

The spelling of 4889477809 in words is "four billion, eight hundred eighty-nine million, four hundred seventy-seven thousand, eight hundred nine".