73421344752 has 80 divisors (see below), whose sum is σ = 216864429312. Its totient is φ = 20968174080.

The previous prime is 73421344751. The next prime is 73421344793. The reversal of 73421344752 is 25744312437.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73421344751) 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, 724227 + ... + 819357.

Almost surely, 2^73421344752 is an apocalyptic number.

It is an amenable number.

73421344752 is an abundant number, since it is smaller than the sum of its proper divisors (143443084560).

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

73421344752 is a wasteful number, since it uses less digits than its factorization.

73421344752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97446 (or 97440 counting only the distinct ones).

The product of its digits is 564480, while the sum is 42.

The spelling of 73421344752 in words is "seventy-three billion, four hundred twenty-one million, three hundred forty-four thousand, seven hundred fifty-two".