72234145272 has 16 divisors (see below), whose sum is σ = 180585363240. Its totient is φ = 24078048416.

The previous prime is 72234145271. The next prime is 72234145301. The reversal of 72234145272 is 27254143227.

It is a self number, because there is not a number n which added to its sum of digits gives 72234145272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72234145271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504878003 + ... + 1504878050.

Almost surely, 2^72234145272 is an apocalyptic number.

It is an amenable number.

72234145272 is an abundant number, since it is smaller than the sum of its proper divisors (108351217968).

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

72234145272 is a wasteful number, since it uses less digits than its factorization.

72234145272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009756062 (or 3009756058 counting only the distinct ones).

The product of its digits is 188160, while the sum is 39.

Adding to 72234145272 its reverse (27254143227), we get a palindrome (99488288499).

The spelling of 72234145272 in words is "seventy-two billion, two hundred thirty-four million, one hundred forty-five thousand, two hundred seventy-two".