73144444912 has 80 divisors (see below), whose sum is σ = 176801184000. Its totient is φ = 28479352320.

The previous prime is 73144444903. The next prime is 73144444927. The reversal of 73144444912 is 21944444137.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1963839 + ... + 2000737.

It is an arithmetic number, because the mean of its divisors is an integer number (2210014800).

Almost surely, 2^73144444912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73144444912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88400592000).

73144444912 is an abundant number, since it is smaller than the sum of its proper divisors (103656739088).

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

73144444912 is a wasteful number, since it uses less digits than its factorization.

73144444912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38534 (or 38528 counting only the distinct ones).

The product of its digits is 387072, while the sum is 43.

The spelling of 73144444912 in words is "seventy-three billion, one hundred forty-four million, four hundred forty-four thousand, nine hundred twelve".