9646209646 has 16 divisors (see below), whose sum is σ = 14825473488. Its totient is φ = 4704436800.

The previous prime is 9646209611. The next prime is 9646209647. The reversal of 9646209646 is 6469026469.

It is a junction number, because it is equal to n+sod(n) for n = 9646209593 and 9646209602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9646209647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475756 + ... + 495616.

It is an arithmetic number, because the mean of its divisors is an integer number (926592093).

Almost surely, 2^9646209646 is an apocalyptic number.

9646209646 is a deficient number, since it is larger than the sum of its proper divisors (5179263842).

9646209646 is a wasteful number, since it uses less digits than its factorization.

9646209646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25827.

The product of its (nonzero) digits is 3359232, while the sum is 52.

The square root of 9646209646 is about 98215.1192332423. The cubic root of 9646209646 is about 2128.7217562228.

The spelling of 9646209646 in words is "nine billion, six hundred forty-six million, two hundred nine thousand, six hundred forty-six".