97243257888 has 432 divisors, whose sum is σ = 331398273024. Its totient is φ = 27512110080.

The previous prime is 97243257877. The next prime is 97243257893. The reversal of 97243257888 is 88875234279.

97243257888 is a `hidden beast` number, since 9 + 7 + 24 + 32 + 578 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 186647068 + ... + 186647588.

It is an arithmetic number, because the mean of its divisors is an integer number (767125632).

Almost surely, 2^97243257888 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 97243257888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165699136512).

97243257888 is an abundant number, since it is smaller than the sum of its proper divisors (234155015136).

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

97243257888 is an equidigital number, since it uses as much as digits as its factorization.

97243257888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689 (or 660 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The spelling of 97243257888 in words is "ninety-seven billion, two hundred forty-three million, two hundred fifty-seven thousand, eight hundred eighty-eight".