989726814386 has 8 divisors (see below), whose sum is σ = 1484742251520. Its totient is φ = 494812730548.

The previous prime is 989726814383. The next prime is 989726814451. The reversal of 989726814386 is 683418627989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×989726814386³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (989726814383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25313906 + ... + 25352973.

It is an arithmetic number, because the mean of its divisors is an integer number (185592781440).

Almost surely, 2^989726814386 is an apocalyptic number.

989726814386 is a deficient number, since it is larger than the sum of its proper divisors (495015437134).

989726814386 is a wasteful number, since it uses less digits than its factorization.

989726814386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50676648.

The product of its digits is 250822656, while the sum is 71.

The spelling of 989726814386 in words is "nine hundred eighty-nine billion, seven hundred twenty-six million, eight hundred fourteen thousand, three hundred eighty-six".