73774403320 has 64 divisors (see below), whose sum is σ = 168037221600. Its totient is φ = 29146951680.

The previous prime is 73774403309. The next prime is 73774403321. The reversal of 73774403320 is 2330447737.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73774403321) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3467515 + ... + 3488725.

Almost surely, 2^73774403320 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 73774403320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84018610800).

73774403320 is an abundant number, since it is smaller than the sum of its proper divisors (94262818280).

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

73774403320 is a wasteful number, since it uses less digits than its factorization.

73774403320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22288 (or 22284 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 40.

The spelling of 73774403320 in words is "seventy-three billion, seven hundred seventy-four million, four hundred three thousand, three hundred twenty".