72183138252 has 48 divisors (see below), whose sum is σ = 178356971520. Its totient is φ = 22642876672.

The previous prime is 72183138217. The next prime is 72183138263. The reversal of 72183138252 is 25283138127.

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 15 ways as a sum of consecutive naturals, for example, 2147149 + ... + 2180507.

It is an arithmetic number, because the mean of its divisors is an integer number (3715770240).

Almost surely, 2^72183138252 is an apocalyptic number.

It is an amenable number.

72183138252 is an abundant number, since it is smaller than the sum of its proper divisors (106173833268).

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

72183138252 is a wasteful number, since it uses less digits than its factorization.

72183138252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43990 (or 43988 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The spelling of 72183138252 in words is "seventy-two billion, one hundred eighty-three million, one hundred thirty-eight thousand, two hundred fifty-two".