73444541064 has 32 divisors (see below), whose sum is σ = 189534301440. Its totient is φ = 23691787200.

The previous prime is 73444541017. The next prime is 73444541099. The reversal of 73444541064 is 46014544437.

It is a super-2 number, since 2×73444541064² (a number of 23 digits) contains 22 as substring.

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, 49357147 + ... + 49358634.

It is an arithmetic number, because the mean of its divisors is an integer number (5922946920).

Almost surely, 2^73444541064 is an apocalyptic number.

It is an amenable number.

73444541064 is an abundant number, since it is smaller than the sum of its proper divisors (116089760376).

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

73444541064 is a wasteful number, since it uses less digits than its factorization.

73444541064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98715821 (or 98715817 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 42.

The spelling of 73444541064 in words is "seventy-three billion, four hundred forty-four million, five hundred forty-one thousand, sixty-four".