73448303520 has 48 divisors (see below), whose sum is σ = 231362157600. Its totient is φ = 19586214144.

The previous prime is 73448303447. The next prime is 73448303521. The reversal of 73448303520 is 2530384437.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (73448303521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76508170 + ... + 76509129.

It is an arithmetic number, because the mean of its divisors is an integer number (4820044950).

Almost surely, 2^73448303520 is an apocalyptic number.

It is an amenable number.

73448303520 is an abundant number, since it is smaller than the sum of its proper divisors (157913854080).

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

73448303520 is a wasteful number, since it uses less digits than its factorization.

73448303520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153017317 (or 153017309 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 39.

Adding to 73448303520 its reverse (2530384437), we get a palindrome (75978687957).

The spelling of 73448303520 in words is "seventy-three billion, four hundred forty-eight million, three hundred three thousand, five hundred twenty".