9646487961 has 48 divisors (see below), whose sum is σ = 14658276864. Its totient is φ = 5632704000.

The previous prime is 9646487941. The next prime is 9646487999. The reversal of 9646487961 is 1697846469.

It is not a de Polignac number, because 9646487961 - 2³⁰ = 8572746137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9646487895 and 9646487904.

It is not an unprimeable number, because it can be changed into a prime (9646487941) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2710195 + ... + 2713751.

It is an arithmetic number, because the mean of its divisors is an integer number (305380768).

Almost surely, 2^9646487961 is an apocalyptic number.

It is an amenable number.

9646487961 is a deficient number, since it is larger than the sum of its proper divisors (5011788903).

9646487961 is a wasteful number, since it uses less digits than its factorization.

9646487961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3854 (or 3843 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 60.

The square root of 9646487961 is about 98216.5360873616. The cubic root of 9646487961 is about 2128.7422288409.

The spelling of 9646487961 in words is "nine billion, six hundred forty-six million, four hundred eighty-seven thousand, nine hundred sixty-one".