9618641136 has 200 divisors, whose sum is σ = 30431652944. Its totient is φ = 2915066880.

The previous prime is 9618641117. The next prime is 9618641143. The reversal of 9618641136 is 6311468169.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 9618641091 and 9618641100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1124556 + ... + 1133076.

Almost surely, 2^9618641136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9618641136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15215826472).

9618641136 is an abundant number, since it is smaller than the sum of its proper divisors (20813011808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9618641136 is a wasteful number, since it uses less digits than its factorization.

9618641136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8621 (or 8606 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 9618641136 is about 98074.6712255514. The cubic root of 9618641136 is about 2126.6918852410.

The spelling of 9618641136 in words is "nine billion, six hundred eighteen million, six hundred forty-one thousand, one hundred thirty-six".