989722914529 has 2 divisors, whose sum is σ = 989722914530. Its totient is φ = 989722914528.

The previous prime is 989722914503. The next prime is 989722914599. The reversal of 989722914529 is 925419227989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 945445075600 + 44277838929 = 972340^2 + 210423^2 .

It is an emirp because it is prime and its reverse (925419227989) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-989722914529 is a prime.

It is not a weakly prime, because it can be changed into another prime (989722914599) 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, 494861457264 + 494861457265.

It is an arithmetic number, because the mean of its divisors is an integer number (494861457265).

Almost surely, 2^989722914529 is an apocalyptic number.

It is an amenable number.

989722914529 is a deficient number, since it is larger than the sum of its proper divisors (1).

989722914529 is an equidigital number, since it uses as much as digits as its factorization.

989722914529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58786560, while the sum is 67.

The spelling of 989722914529 in words is "nine hundred eighty-nine billion, seven hundred twenty-two million, nine hundred fourteen thousand, five hundred twenty-nine".