72112300732 has 24 divisors (see below), whose sum is σ = 128111011280. Its totient is φ = 35509415040.

The previous prime is 72112300709. The next prime is 72112300747. The reversal of 72112300732 is 23700321127.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 72112300732.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1159894 + ... + 1220482.

Almost surely, 2^72112300732 is an apocalyptic number.

It is an amenable number.

72112300732 is a deficient number, since it is larger than the sum of its proper divisors (55998710548).

72112300732 is a wasteful number, since it uses less digits than its factorization.

72112300732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65101 (or 65099 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

Adding to 72112300732 its reverse (23700321127), we get a palindrome (95812621859).

The spelling of 72112300732 in words is "seventy-two billion, one hundred twelve million, three hundred thousand, seven hundred thirty-two".