73356394128 has 80 divisors (see below), whose sum is σ = 196565603520. Its totient is φ = 23545492992.

The previous prime is 73356394127. The next prime is 73356394159. The reversal of 73356394128 is 82149365337.

It is not an unprimeable number, because it can be changed into a prime (73356394123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448575 + ... + 589857.

It is an arithmetic number, because the mean of its divisors is an integer number (2457070044).

Almost surely, 2^73356394128 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 73356394128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98282801760).

73356394128 is an abundant number, since it is smaller than the sum of its proper divisors (123209209392).

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

73356394128 is a wasteful number, since it uses less digits than its factorization.

73356394128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141696 (or 141690 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 51.

The spelling of 73356394128 in words is "seventy-three billion, three hundred fifty-six million, three hundred ninety-four thousand, one hundred twenty-eight".