97323191895 has 16 divisors (see below), whose sum is σ = 155810783232. Its totient is φ = 51874476960.

The previous prime is 97323191881. The next prime is 97323191923. The reversal of 97323191895 is 59819132379.

It is not a de Polignac number, because 97323191895 - 2²⁰ = 97322143319 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1925811 + ... + 1975700.

It is an arithmetic number, because the mean of its divisors is an integer number (9738173952).

Almost surely, 2^97323191895 is an apocalyptic number.

97323191895 is a deficient number, since it is larger than the sum of its proper divisors (58487591337).

97323191895 is a wasteful number, since it uses less digits than its factorization.

97323191895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903182.

The product of its digits is 3674160, while the sum is 57.

The spelling of 97323191895 in words is "ninety-seven billion, three hundred twenty-three million, one hundred ninety-one thousand, eight hundred ninety-five".