73212733272 has 64 divisors (see below), whose sum is σ = 214043892480. Its totient is φ = 20431458432.

The previous prime is 73212733271. The next prime is 73212733313. The reversal of 73212733272 is 27233721237.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 73212733272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73212733271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5060103 + ... + 5074550.

It is an arithmetic number, because the mean of its divisors is an integer number (3344435820).

Almost surely, 2^73212733272 is an apocalyptic number.

It is an amenable number.

73212733272 is an abundant number, since it is smaller than the sum of its proper divisors (140831159208).

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

73212733272 is a wasteful number, since it uses less digits than its factorization.

73212733272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10134712 (or 10134708 counting only the distinct ones).

The product of its digits is 148176, while the sum is 39.

The spelling of 73212733272 in words is "seventy-three billion, two hundred twelve million, seven hundred thirty-three thousand, two hundred seventy-two".