989886409004 has 6 divisors (see below), whose sum is σ = 1732301215764. Its totient is φ = 494943204500.

The previous prime is 989886409003. The next prime is 989886409013. The reversal of 989886409004 is 400904688989.

It is not an unprimeable number, because it can be changed into a prime (989886409003) 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, 123735801122 + ... + 123735801129.

It is an arithmetic number, because the mean of its divisors is an integer number (288716869294).

Almost surely, 2^989886409004 is an apocalyptic number.

It is an amenable number.

989886409004 is a deficient number, since it is larger than the sum of its proper divisors (742414806760).

989886409004 is a wasteful number, since it uses less digits than its factorization.

989886409004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247471602255 (or 247471602253 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 65.

The spelling of 989886409004 in words is "nine hundred eighty-nine billion, eight hundred eighty-six million, four hundred nine thousand, four".