73136504320 has 120 divisors (see below), whose sum is σ = 192747710232. Its totient is φ = 26594979840.

The previous prime is 73136504297. The next prime is 73136504417. The reversal of 73136504320 is 2340563137.

It is a super-4 number, since 4×73136504320⁴ (a number of 45 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 191707 + ... + 427813.

Almost surely, 2^73136504320 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 73136504320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96373855116).

73136504320 is an abundant number, since it is smaller than the sum of its proper divisors (119611205912).

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

73136504320 is a wasteful number, since it uses less digits than its factorization.

73136504320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236152 (or 236125 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 34.

The spelling of 73136504320 in words is "seventy-three billion, one hundred thirty-six million, five hundred four thousand, three hundred twenty".