9900954649 has 8 divisors (see below), whose sum is σ = 10484777160. Its totient is φ = 9317289216.

The previous prime is 9900954643. The next prime is 9900954673. The reversal of 9900954649 is 9464590099.

It can be written as a sum of positive squares in 4 ways, for example, as 4857114249 + 5043840400 = 69693^2 + 71020^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9900954649 - 2⁷ = 9900954521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9900954649.

It is not an unprimeable number, because it can be changed into a prime (9900954643) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 105867 + ... + 176095.

It is an arithmetic number, because the mean of its divisors is an integer number (1310597145).

Almost surely, 2^9900954649 is an apocalyptic number.

It is an amenable number.

9900954649 is a deficient number, since it is larger than the sum of its proper divisors (583822511).

9900954649 is a wasteful number, since it uses less digits than its factorization.

9900954649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78539.

The product of its (nonzero) digits is 3149280, while the sum is 55.

The square root of 9900954649 is about 99503.5408867443. The cubic root of 9900954649 is about 2147.2981853251.

The spelling of 9900954649 in words is "nine billion, nine hundred million, nine hundred fifty-four thousand, six hundred forty-nine".