72213512368 has 20 divisors (see below), whose sum is σ = 139926549088. Its totient is φ = 36103435200.

The previous prime is 72213512359. The next prime is 72213512419. The reversal of 72213512368 is 86321531227.

It is a self number, because there is not a number n which added to its sum of digits gives 72213512368.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23208 + ... + 380743.

Almost surely, 2^72213512368 is an apocalyptic number.

It is an amenable number.

72213512368 is a deficient number, since it is larger than the sum of its proper divisors (67713036720).

72213512368 is a wasteful number, since it uses less digits than its factorization.

72213512368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415132 (or 415126 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The spelling of 72213512368 in words is "seventy-two billion, two hundred thirteen million, five hundred twelve thousand, three hundred sixty-eight".