9212613680 has 20 divisors (see below), whose sum is σ = 21419326992. Its totient is φ = 3685045440.

The previous prime is 9212613673. The next prime is 9212613689. The reversal of 9212613680 is 863162129.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (9212613689) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 57578756 + ... + 57578915.

Almost surely, 2^9212613680 is an apocalyptic number.

It is an amenable number.

9212613680 is an abundant number, since it is smaller than the sum of its proper divisors (12206713312).

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

9212613680 is a wasteful number, since it uses less digits than its factorization.

9212613680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115157684 (or 115157678 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 9212613680 is about 95982.3612962298. The cubic root of 9212613680 is about 2096.3362937182.

The spelling of 9212613680 in words is "nine billion, two hundred twelve million, six hundred thirteen thousand, six hundred eighty".