9889170891448 has 64 divisors (see below), whose sum is σ = 19004862245760. Its totient is φ = 4822713979776.

The previous prime is 9889170891323. The next prime is 9889170891491. The reversal of 9889170891448 is 8441980719889.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110816815 + ... + 110906017.

It is an arithmetic number, because the mean of its divisors is an integer number (296950972590).

Almost surely, 2^{9889170891448} is an apocalyptic number.

It is an amenable number.

9889170891448 is a deficient number, since it is larger than the sum of its proper divisors (9115691354312).

9889170891448 is a wasteful number, since it uses less digits than its factorization.

9889170891448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91316 (or 91312 counting only the distinct ones).

The product of its (nonzero) digits is 334430208, while the sum is 76.

The spelling of 9889170891448 in words is "nine trillion, eight hundred eighty-nine billion, one hundred seventy million, eight hundred ninety-one thousand, four hundred forty-eight".