97685839680 has 672 divisors, whose sum is σ = 370118688768. Its totient is φ = 21637324800.

The previous prime is 97685839679. The next prime is 97685839763. The reversal of 97685839680 is 8693858679.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 226649065 + ... + 226649495.

Almost surely, 2^97685839680 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 97685839680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185059344384).

97685839680 is an abundant number, since it is smaller than the sum of its proper divisors (272432849088).

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

97685839680 is a wasteful number, since it uses less digits than its factorization.

97685839680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 156764160, while the sum is 69.

The spelling of 97685839680 in words is "ninety-seven billion, six hundred eighty-five million, eight hundred thirty-nine thousand, six hundred eighty".