72112181189 has 16 divisors (see below), whose sum is σ = 72934646400. Its totient is φ = 71295984960.

The previous prime is 72112181179. The next prime is 72112181201. The reversal of 72112181189 is 98118121127.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72112181189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72112181179) 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 15 ways as a sum of consecutive naturals, for example, 20833919 + ... + 20837379.

It is an arithmetic number, because the mean of its divisors is an integer number (4558415400).

Almost surely, 2^72112181189 is an apocalyptic number.

It is an amenable number.

72112181189 is a deficient number, since it is larger than the sum of its proper divisors (822465211).

72112181189 is a wasteful number, since it uses less digits than its factorization.

72112181189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300.

The product of its digits is 16128, while the sum is 41.

The spelling of 72112181189 in words is "seventy-two billion, one hundred twelve million, one hundred eighty-one thousand, one hundred eighty-nine".