9890959544 has 8 divisors (see below), whose sum is σ = 18545549160. Its totient is φ = 4945479768.

The previous prime is 9890959483. The next prime is 9890959579. The reversal of 9890959544 is 4459590989.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 618184964 + ... + 618184979.

It is an arithmetic number, because the mean of its divisors is an integer number (2318193645).

Almost surely, 2^9890959544 is an apocalyptic number.

It is an amenable number.

9890959544 is a deficient number, since it is larger than the sum of its proper divisors (8654589616).

9890959544 is a wasteful number, since it uses less digits than its factorization.

9890959544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236369949 (or 1236369945 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 62.

The square root of 9890959544 is about 99453.3033337757. The cubic root of 9890959544 is about 2146.5753696025.

The spelling of 9890959544 in words is "nine billion, eight hundred ninety million, nine hundred fifty-nine thousand, five hundred forty-four".