72265805312 has 40 divisors (see below), whose sum is σ = 144439113192. Its totient is φ = 36120729600.

The previous prime is 72265805273. The next prime is 72265805317. The reversal of 72265805312 is 21350856227.

It is a self number, because there is not a number n which added to its sum of digits gives 72265805312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72265805317) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1606487 + ... + 1650857.

Almost surely, 2^72265805312 is an apocalyptic number.

It is an amenable number.

72265805312 is a deficient number, since it is larger than the sum of its proper divisors (72173307880).

72265805312 is an equidigital number, since it uses as much as digits as its factorization.

72265805312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47570 (or 47554 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The spelling of 72265805312 in words is "seventy-two billion, two hundred sixty-five million, eight hundred five thousand, three hundred twelve".