97318031555952 has 120 divisors (see below), whose sum is σ = 273620167657200. Its totient is φ = 32288933882880.

The previous prime is 97318031555947. The next prime is 97318031555999. The reversal of 97318031555952 is 25955513081379.

97318031555952 is a `hidden beast` number, since 9 + 7 + 3 + 1 + 8 + 0 + 31 + 5 + 5 + 595 + 2 = 666.

97318031555952 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 97318031555952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37474924 + ... + 39987572.

It is an arithmetic number, because the mean of its divisors is an integer number (2280168063810).

Almost surely, 2^{97318031555952} 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 97318031555952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136810083828600).

97318031555952 is an abundant number, since it is smaller than the sum of its proper divisors (176302136101248).

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

97318031555952 is a wasteful number, since it uses less digits than its factorization.

97318031555952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513911 (or 2513902 counting only the distinct ones).

The product of its (nonzero) digits is 51030000, while the sum is 63.

The spelling of 97318031555952 in words is "ninety-seven trillion, three hundred eighteen billion, thirty-one million, five hundred fifty-five thousand, nine hundred fifty-two".