73189351968 has 48 divisors (see below), whose sum is σ = 192376033920. Its totient is φ = 24364198656.

The previous prime is 73189351931. The next prime is 73189352029. The reversal of 73189351968 is 86915398137.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 430888 + ... + 576231.

It is an arithmetic number, because the mean of its divisors is an integer number (4007834040).

Almost surely, 2^73189351968 is an apocalyptic number.

It is an amenable number.

73189351968 is an abundant number, since it is smaller than the sum of its proper divisors (119186681952).

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

73189351968 is a wasteful number, since it uses less digits than its factorization.

73189351968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007889 (or 1007881 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 60.

The spelling of 73189351968 in words is "seventy-three billion, one hundred eighty-nine million, three hundred fifty-one thousand, nine hundred sixty-eight".