9819099650 has 48 divisors (see below), whose sum is σ = 18977975808. Its totient is φ = 3775680000.

The previous prime is 9819099637. The next prime is 9819099673. The reversal of 9819099650 is 569909189.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 213074 + ... + 255026.

It is an arithmetic number, because the mean of its divisors is an integer number (395374496).

Almost surely, 2^9819099650 is an apocalyptic number.

9819099650 is a deficient number, since it is larger than the sum of its proper divisors (9158876158).

9819099650 is a wasteful number, since it uses less digits than its factorization.

9819099650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42147 (or 42142 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 56.

The square root of 9819099650 is about 99091.3702095193. The cubic root of 9819099650 is about 2141.3642893127.

The spelling of 9819099650 in words is "nine billion, eight hundred nineteen million, ninety-nine thousand, six hundred fifty".