97643530320 has 320 divisors, whose sum is σ = 357841096704. Its totient is φ = 21561200640.

The previous prime is 97643530289. The next prime is 97643530379. The reversal of 97643530320 is 2303534679.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7087759 + ... + 7101521.

Almost surely, 2^97643530320 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 97643530320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178920548352).

97643530320 is an abundant number, since it is smaller than the sum of its proper divisors (260197566384).

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

97643530320 is a wasteful number, since it uses less digits than its factorization.

97643530320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13930 (or 13924 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 42.

The spelling of 97643530320 in words is "ninety-seven billion, six hundred forty-three million, five hundred thirty thousand, three hundred twenty".