97184322640 has 20 divisors (see below), whose sum is σ = 225953550324. Its totient is φ = 38873729024.

The previous prime is 97184322623. The next prime is 97184322673. The reversal of 97184322640 is 4622348179.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 76899726864 + 20284595776 = 277308^2 + 142424^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 607401937 + ... + 607402096.

Almost surely, 2^97184322640 is an apocalyptic number.

It is an amenable number.

97184322640 is an abundant number, since it is smaller than the sum of its proper divisors (128769227684).

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

97184322640 is a wasteful number, since it uses less digits than its factorization.

97184322640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214804046 (or 1214804040 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The spelling of 97184322640 in words is "ninety-seven billion, one hundred eighty-four million, three hundred twenty-two thousand, six hundred forty".