97323191952 has 160 divisors (see below), whose sum is σ = 289070664960. Its totient is φ = 27639152640.

The previous prime is 97323191929. The next prime is 97323191969. The reversal of 97323191952 is 25919132379.

It is a junction number, because it is equal to n+sod(n) for n = 97323191895 and 97323191904.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69071824 + ... + 69073232.

It is an arithmetic number, because the mean of its divisors is an integer number (1806691656).

Almost surely, 2^97323191952 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 97323191952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144535332480).

97323191952 is an abundant number, since it is smaller than the sum of its proper divisors (191747473008).

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

97323191952 is a wasteful number, since it uses less digits than its factorization.

97323191952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521 (or 2515 counting only the distinct ones).

The product of its digits is 918540, while the sum is 51.

The spelling of 97323191952 in words is "ninety-seven billion, three hundred twenty-three million, one hundred ninety-one thousand, nine hundred fifty-two".