49999999589 has 2 divisors, whose sum is σ = 49999999590. Its totient is φ = 49999999588.

The previous prime is 49999999579. The next prime is 49999999591. The reversal of 49999999589 is 98599999994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35206142689 + 14793856900 = 187633^2 + 121630^2 .

It is a cyclic number.

It is not a de Polignac number, because 49999999589 - 2⁸ = 49999999333 is a prime.

Together with 49999999591, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49999999579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999999794 + 24999999795.

It is an arithmetic number, because the mean of its divisors is an integer number (24999999795).

Almost surely, 2^49999999589 is an apocalyptic number.

It is an amenable number.

49999999589 is a deficient number, since it is larger than the sum of its proper divisors (1).

49999999589 is an equidigital number, since it uses as much as digits as its factorization.

49999999589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6887475360, while the sum is 89.

The spelling of 49999999589 in words is "forty-nine billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, five hundred eighty-nine".