989690364998 has 8 divisors (see below), whose sum is σ = 1571861167992. Its totient is φ = 465736642336.

The previous prime is 989690364979. The next prime is 989690365019. The reversal of 989690364998 is 899463096989.

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

It is a congruent number.

It is an unprimeable number.

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, 14554270040 + ... + 14554270107.

It is an arithmetic number, because the mean of its divisors is an integer number (196482645999).

Almost surely, 2^989690364998 is an apocalyptic number.

989690364998 is a deficient number, since it is larger than the sum of its proper divisors (582170802994).

989690364998 is a wasteful number, since it uses less digits than its factorization.

989690364998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29108540166.

The product of its (nonzero) digits is 1632586752, while the sum is 80.

The spelling of 989690364998 in words is "nine hundred eighty-nine billion, six hundred ninety million, three hundred sixty-four thousand, nine hundred ninety-eight".