73647730500 has 96 divisors (see below), whose sum is σ = 215360570880. Its totient is φ = 19557126400.

The previous prime is 73647730493. The next prime is 73647730501. The reversal of 73647730500 is 503774637.

It is not an unprimeable number, because it can be changed into a prime (73647730501) 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 31 ways as a sum of consecutive naturals, for example, 255784 + ... + 461216.

It is an arithmetic number, because the mean of its divisors is an integer number (2243339280).

Almost surely, 2^73647730500 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 73647730500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107680285440).

73647730500 is an abundant number, since it is smaller than the sum of its proper divisors (141712840380).

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

73647730500 is a wasteful number, since it uses less digits than its factorization.

73647730500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205694 (or 205682 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 42.

The spelling of 73647730500 in words is "seventy-three billion, six hundred forty-seven million, seven hundred thirty thousand, five hundred".