9791236194649 has 64 divisors (see below), whose sum is σ = 12732363212800. Its totient is φ = 7311801788928.

The previous prime is 9791236194647. The next prime is 9791236194697. The reversal of 9791236194649 is 9464916321979.

It is not a de Polignac number, because 9791236194649 - 2¹ = 9791236194647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9791236194643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1873201174 + ... + 1873206400.

It is an arithmetic number, because the mean of its divisors is an integer number (198943175200).

Almost surely, 2^{9791236194649} is an apocalyptic number.

It is an amenable number.

9791236194649 is a deficient number, since it is larger than the sum of its proper divisors (2941127018151).

9791236194649 is a wasteful number, since it uses less digits than its factorization.

9791236194649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9102.

The product of its digits is 158723712, while the sum is 70.

The spelling of 9791236194649 in words is "nine trillion, seven hundred ninety-one billion, two hundred thirty-six million, one hundred ninety-four thousand, six hundred forty-nine".