73632445312 has 64 divisors (see below), whose sum is σ = 148891644000. Its totient is φ = 36267264000.

The previous prime is 73632445309. The next prime is 73632445333. The reversal of 73632445312 is 21354423637.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2558362 + ... + 2586982.

Almost surely, 2^73632445312 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 73632445312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74445822000).

73632445312 is an abundant number, since it is smaller than the sum of its proper divisors (75259198688).

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

73632445312 is a wasteful number, since it uses less digits than its factorization.

73632445312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28935 (or 28923 counting only the distinct ones).

The product of its digits is 362880, while the sum is 40.

Adding to 73632445312 its reverse (21354423637), we get a palindrome (94986868949).

The spelling of 73632445312 in words is "seventy-three billion, six hundred thirty-two million, four hundred forty-five thousand, three hundred twelve".