97843655712 has 96 divisors (see below), whose sum is σ = 280921374720. Its totient is φ = 29572056320.

The previous prime is 97843655681. The next prime is 97843655717. The reversal of 97843655712 is 21755634879.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (97843655717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283489 + ... + 525407.

It is an arithmetic number, because the mean of its divisors is an integer number (2926264320).

Almost surely, 2^97843655712 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 97843655712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140460687360).

97843655712 is an abundant number, since it is smaller than the sum of its proper divisors (183077719008).

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

97843655712 is a wasteful number, since it uses less digits than its factorization.

97843655712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242326 (or 242318 counting only the distinct ones).

The product of its digits is 12700800, while the sum is 57.

The spelling of 97843655712 in words is "ninety-seven billion, eight hundred forty-three million, six hundred fifty-five thousand, seven hundred twelve".