989745460829 has 2 divisors, whose sum is σ = 989745460830. Its totient is φ = 989745460828.

The previous prime is 989745460819. The next prime is 989745460853. The reversal of 989745460829 is 928064547989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 917712268729 + 72033192100 = 957973^2 + 268390^2 .

It is a cyclic number.

It is not a de Polignac number, because 989745460829 - 2⁴ = 989745460813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989745460819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494872730414 + 494872730415.

It is an arithmetic number, because the mean of its divisors is an integer number (494872730415).

Almost surely, 2^989745460829 is an apocalyptic number.

It is an amenable number.

989745460829 is a deficient number, since it is larger than the sum of its proper divisors (1).

989745460829 is an equidigital number, since it uses as much as digits as its factorization.

989745460829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 313528320, while the sum is 71.

The spelling of 989745460829 in words is "nine hundred eighty-nine billion, seven hundred forty-five million, four hundred sixty thousand, eight hundred twenty-nine".