9836648961 has 4 divisors (see below), whose sum is σ = 13115531952. Its totient is φ = 6557765972.

The previous prime is 9836648959. The next prime is 9836648981. The reversal of 9836648961 is 1698466389.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9836648961 - 2¹ = 9836648959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9836648895 and 9836648904.

It is not an unprimeable number, because it can be changed into a prime (9836648951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1639441491 + ... + 1639441496.

It is an arithmetic number, because the mean of its divisors is an integer number (3278882988).

Almost surely, 2^9836648961 is an apocalyptic number.

It is an amenable number.

9836648961 is a deficient number, since it is larger than the sum of its proper divisors (3278882991).

9836648961 is a wasteful number, since it uses less digits than its factorization.

9836648961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278882990.

The product of its digits is 13436928, while the sum is 60.

The square root of 9836648961 is about 99179.8818359853. The cubic root of 9836648961 is about 2142.6392569197.

The spelling of 9836648961 in words is "nine billion, eight hundred thirty-six million, six hundred forty-eight thousand, nine hundred sixty-one".