989726814367 has 2 divisors, whose sum is σ = 989726814368. Its totient is φ = 989726814366.

The previous prime is 989726814343. The next prime is 989726814371. The reversal of 989726814367 is 763418627989.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-989726814367 is a prime.

It is a super-2 number, since 2×989726814367² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 989726814296 and 989726814305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989726814667) 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, 494863407183 + 494863407184.

It is an arithmetic number, because the mean of its divisors is an integer number (494863407184).

Almost surely, 2^989726814367 is an apocalyptic number.

989726814367 is a deficient number, since it is larger than the sum of its proper divisors (1).

989726814367 is an equidigital number, since it uses as much as digits as its factorization.

989726814367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 219469824, while the sum is 70.

The spelling of 989726814367 in words is "nine hundred eighty-nine billion, seven hundred twenty-six million, eight hundred fourteen thousand, three hundred sixty-seven".