97656249992 has 32 divisors (see below), whose sum is σ = 209286912000. Its totient is φ = 41847974784.

The previous prime is 97656249979. The next prime is 97656250001. The reversal of 97656249992 is 29994265679.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 429884 + ... + 616532.

It is an arithmetic number, because the mean of its divisors is an integer number (6540216000).

Almost surely, 2^97656249992 is an apocalyptic number.

It is an amenable number.

97656249992 is an abundant number, since it is smaller than the sum of its proper divisors (111630662008).

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

97656249992 is a wasteful number, since it uses less digits than its factorization.

97656249992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196005 (or 196001 counting only the distinct ones).

The product of its digits is 132269760, while the sum is 68.

The spelling of 97656249992 in words is "ninety-seven billion, six hundred fifty-six million, two hundred forty-nine thousand, nine hundred ninety-two".