73646325288 has 96 divisors (see below), whose sum is σ = 208208225160. Its totient is φ = 23493680640.

The previous prime is 73646325229. The next prime is 73646325293. The reversal of 73646325288 is 88252364637.

73646325288 is a `hidden beast` number, since 7 + 36 + 4 + 6 + 325 + 288 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 51528092004 + 22118233284 = 226998^2 + 148722^2 .

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 23 ways as a sum of consecutive naturals, for example, 64095 + ... + 389102.

Almost surely, 2^73646325288 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 73646325288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104104112580).

73646325288 is an abundant number, since it is smaller than the sum of its proper divisors (134561899872).

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

73646325288 is a wasteful number, since it uses less digits than its factorization.

73646325288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453307 (or 453300 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 73646325288 in words is "seventy-three billion, six hundred forty-six million, three hundred twenty-five thousand, two hundred eighty-eight".