9811796645 has 8 divisors (see below), whose sum is σ = 13456178304. Its totient is φ = 6728089104.

The previous prime is 9811796627. The next prime is 9811796663. The reversal of 9811796645 is 5466971189.

It is an interprime number because it is at equal distance from previous prime (9811796627) and next prime (9811796663).

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 9811796645 - 2¹⁰ = 9811795621 is a prime.

It is a Duffinian number.

It is a Curzon number.

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 in 7 ways as a sum of consecutive naturals, for example, 140168489 + ... + 140168558.

It is an arithmetic number, because the mean of its divisors is an integer number (1682022288).

Almost surely, 2^9811796645 is an apocalyptic number.

It is an amenable number.

9811796645 is a deficient number, since it is larger than the sum of its proper divisors (3644381659).

9811796645 is a wasteful number, since it uses less digits than its factorization.

9811796645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280337059.

The product of its digits is 3265920, while the sum is 56.

The square root of 9811796645 is about 99054.5135014049. The cubic root of 9811796645 is about 2140.8332741376.

The spelling of 9811796645 in words is "nine billion, eight hundred eleven million, seven hundred ninety-six thousand, six hundred forty-five".