72321688285608 has 32 divisors (see below), whose sum is σ = 181307853662400. Its totient is φ = 24040078368768.

The previous prime is 72321688285601. The next prime is 72321688285661. The reversal of 72321688285608 is 80658288612327.

It is not an unprimeable number, because it can be changed into a prime (72321688285601) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4196932441 + ... + 4196949672.

It is an arithmetic number, because the mean of its divisors is an integer number (5665870426950).

Almost surely, 2^{72321688285608} is an apocalyptic number.

It is an amenable number.

72321688285608 is an abundant number, since it is smaller than the sum of its proper divisors (108986165376792).

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

72321688285608 is a wasteful number, since it uses less digits than its factorization.

72321688285608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8393882481 (or 8393882477 counting only the distinct ones).

The product of its (nonzero) digits is 123863040, while the sum is 66.

The spelling of 72321688285608 in words is "seventy-two trillion, three hundred twenty-one billion, six hundred eighty-eight million, two hundred eighty-five thousand, six hundred eight".