72267503812 has 24 divisors (see below), whose sum is σ = 153037067904. Its totient is φ = 29149917312.

The previous prime is 72267503783. The next prime is 72267503813. The reversal of 72267503812 is 21830576227.

It is not an unprimeable number, because it can be changed into a prime (72267503813) 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 7 ways as a sum of consecutive naturals, for example, 75910768 + ... + 75911719.

It is an arithmetic number, because the mean of its divisors is an integer number (6376544496).

Almost surely, 2^72267503812 is an apocalyptic number.

It is an amenable number.

72267503812 is an abundant number, since it is smaller than the sum of its proper divisors (80769564092).

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

72267503812 is a wasteful number, since it uses less digits than its factorization.

72267503812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151822515 (or 151822513 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 72267503812 in words is "seventy-two billion, two hundred sixty-seven million, five hundred three thousand, eight hundred twelve".