97643047320 has 896 divisors, whose sum is σ = 418838999040. Its totient is φ = 19920245760.

The previous prime is 97643047319. The next prime is 97643047321. The reversal of 97643047320 is 2374034679.

97643047320 is a `hidden beast` number, since 97 + 64 + 30 + 473 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (97643047319) and next prime (97643047321).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97643047321) by changing a digit.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 82259767 + ... + 82260953.

It is an arithmetic number, because the mean of its divisors is an integer number (467454240).

Almost surely, 2^97643047320 is an apocalyptic number.

97643047320 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97643047320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209419499520).

97643047320 is an abundant number, since it is smaller than the sum of its proper divisors (321195951720).

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

97643047320 is a wasteful number, since it uses less digits than its factorization.

97643047320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267 (or 1248 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 45.

The spelling of 97643047320 in words is "ninety-seven billion, six hundred forty-three million, forty-seven thousand, three hundred twenty".