9489889849 has 32 divisors (see below), whose sum is σ = 11220848640. Its totient is φ = 7940116800.

The previous prime is 9489889847. The next prime is 9489889867.

9489889849 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9489889849 - 2¹ = 9489889847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9489889847) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 655402 + ... + 669724.

It is an arithmetic number, because the mean of its divisors is an integer number (350651520).

Almost surely, 2^9489889849 is an apocalyptic number.

It is an amenable number.

9489889849 is a deficient number, since it is larger than the sum of its proper divisors (1730958791).

9489889849 is a wasteful number, since it uses less digits than its factorization.

9489889849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14461.

The product of its digits is 429981696, while the sum is 76.

The square root of 9489889849 is about 97416.0656616762. The cubic root of 9489889849 is about 2117.1602128853.

The spelling of 9489889849 in words is "nine billion, four hundred eighty-nine million, eight hundred eighty-nine thousand, eight hundred forty-nine".