989419858529 has 2 divisors, whose sum is σ = 989419858530. Its totient is φ = 989419858528.

The previous prime is 989419858487. The next prime is 989419858571. The reversal of 989419858529 is 925858914989.

It is a balanced prime because it is at equal distance from previous prime (989419858487) and next prime (989419858571).

It can be written as a sum of positive squares in only one way, i.e., 609372268129 + 380047590400 = 780623^2 + 616480^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-989419858529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 989419858529.

It is not a weakly prime, because it can be changed into another prime (989419558529) 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, 494709929264 + 494709929265.

It is an arithmetic number, because the mean of its divisors is an integer number (494709929265).

Almost surely, 2^989419858529 is an apocalyptic number.

It is an amenable number.

989419858529 is a deficient number, since it is larger than the sum of its proper divisors (1).

989419858529 is an equidigital number, since it uses as much as digits as its factorization.

989419858529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 671846400, while the sum is 77.

The spelling of 989419858529 in words is "nine hundred eighty-nine billion, four hundred nineteen million, eight hundred fifty-eight thousand, five hundred twenty-nine".