72267503836 has 24 divisors (see below), whose sum is σ = 138972291696. Its totient is φ = 32609089920.

The previous prime is 72267503821. The next prime is 72267503881. The reversal of 72267503836 is 63830576227.

It is a super-2 number, since 2×72267503836² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 72267503836.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5988291 + ... + 6000346.

It is an arithmetic number, because the mean of its divisors is an integer number (5790512154).

Almost surely, 2^72267503836 is an apocalyptic number.

It is an amenable number.

72267503836 is a deficient number, since it is larger than the sum of its proper divisors (66704787860).

72267503836 is a wasteful number, since it uses less digits than its factorization.

72267503836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11988789 (or 11988787 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 49.

The spelling of 72267503836 in words is "seventy-two billion, two hundred sixty-seven million, five hundred three thousand, eight hundred thirty-six".