97871298912 has 144 divisors (see below), whose sum is σ = 280797124608. Its totient is φ = 32334232320.

The previous prime is 97871298883. The next prime is 97871298919. The reversal of 97871298912 is 21989217879.

It is a tau number, because it is divible by the number of its divisors (144).

It is a self number, because there is not a number n which added to its sum of digits gives 97871298912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97871298919) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 53686033 + ... + 53687855.

It is an arithmetic number, because the mean of its divisors is an integer number (1949980032).

Almost surely, 2^97871298912 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 97871298912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140398562304).

97871298912 is an abundant number, since it is smaller than the sum of its proper divisors (182925825696).

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

97871298912 is a wasteful number, since it uses less digits than its factorization.

97871298912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3393 (or 3382 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 63.

The spelling of 97871298912 in words is "ninety-seven billion, eight hundred seventy-one million, two hundred ninety-eight thousand, nine hundred twelve".