97844723700 has 144 divisors (see below), whose sum is σ = 302195658240. Its totient is φ = 24370416000.

The previous prime is 97844723653. The next prime is 97844723701. The reversal of 97844723700 is 732744879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97844723701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 283815 + ... + 525585.

It is an arithmetic number, because the mean of its divisors is an integer number (2098580960).

Almost surely, 2^97844723700 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 97844723700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151097829120).

97844723700 is an abundant number, since it is smaller than the sum of its proper divisors (204350934540).

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

97844723700 is a wasteful number, since it uses less digits than its factorization.

97844723700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241878 (or 241871 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The spelling of 97844723700 in words is "ninety-seven billion, eight hundred forty-four million, seven hundred twenty-three thousand, seven hundred".