97815718000 has 320 divisors, whose sum is σ = 317569674240. Its totient is φ = 28142208000.

The previous prime is 97815717973. The next prime is 97815718001. The reversal of 97815718000 is 81751879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97815718001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1977571 + ... + 2026429.

It is an arithmetic number, because the mean of its divisors is an integer number (992405232).

Almost surely, 2^97815718000 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 97815718000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158784837120).

97815718000 is an abundant number, since it is smaller than the sum of its proper divisors (219753956240).

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

97815718000 is a wasteful number, since it uses less digits than its factorization.

97815718000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48913 (or 48897 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 46.

The spelling of 97815718000 in words is "ninety-seven billion, eight hundred fifteen million, seven hundred eighteen thousand".