72283317892 has 36 divisors (see below), whose sum is σ = 138396773340. Its totient is φ = 32918369280.

The previous prime is 72283317857. The next prime is 72283317893. The reversal of 72283317892 is 29871338227.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20565280836 + 51718037056 = 143406^2 + 227416^2 .

It is not an unprimeable number, because it can be changed into a prime (72283317893) 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 11 ways as a sum of consecutive naturals, for example, 487717 + ... + 618412.

It is an arithmetic number, because the mean of its divisors is an integer number (3844354815).

Almost surely, 2^72283317892 is an apocalyptic number.

It is an amenable number.

72283317892 is a deficient number, since it is larger than the sum of its proper divisors (66113455448).

72283317892 is a wasteful number, since it uses less digits than its factorization.

72283317892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106212 (or 1106179 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 52.

The spelling of 72283317892 in words is "seventy-two billion, two hundred eighty-three million, three hundred seventeen thousand, eight hundred ninety-two".