989726814383 has 2 divisors, whose sum is σ = 989726814384. Its totient is φ = 989726814382.

The previous prime is 989726814371. The next prime is 989726814451. The reversal of 989726814383 is 383418627989.

It is a happy number.

It is an a-pointer prime, because the next prime (989726814451) can be obtained adding 989726814383 to its sum of digits (68).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 989726814383 - 2⁴ = 989726814367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989726814343) 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, 494863407191 + 494863407192.

It is an arithmetic number, because the mean of its divisors is an integer number (494863407192).

Almost surely, 2^989726814383 is an apocalyptic number.

989726814383 is a deficient number, since it is larger than the sum of its proper divisors (1).

989726814383 is an equidigital number, since it uses as much as digits as its factorization.

989726814383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 125411328, while the sum is 68.

The spelling of 989726814383 in words is "nine hundred eighty-nine billion, seven hundred twenty-six million, eight hundred fourteen thousand, three hundred eighty-three".