73743345280 has 128 divisors (see below), whose sum is σ = 203632522560. Its totient is φ = 25238323200.

The previous prime is 73743345253. The next prime is 73743345287. The reversal of 73743345280 is 8254334737.

It is a tau number, because it is divible by the number of its divisors (128).

It is a self number, because there is not a number n which added to its sum of digits gives 73743345280.

It is not an unprimeable number, because it can be changed into a prime (73743345287) 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, 188406 + ... + 427765.

Almost surely, 2^73743345280 is an apocalyptic number.

It is an amenable number.

73743345280 is an abundant number, since it is smaller than the sum of its proper divisors (129889177280).

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

73743345280 is a wasteful number, since it uses less digits than its factorization.

73743345280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616218 (or 616206 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 46.

The spelling of 73743345280 in words is "seventy-three billion, seven hundred forty-three million, three hundred forty-five thousand, two hundred eighty".