72229892968 has 32 divisors (see below), whose sum is σ = 137477966400. Its totient is φ = 35569302912.

The previous prime is 72229892963. The next prime is 72229892983. The reversal of 72229892968 is 86929892227.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (72229892963) 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 7 ways as a sum of consecutive naturals, for example, 4181293 + ... + 4198531.

It is an arithmetic number, because the mean of its divisors is an integer number (4296186450).

Almost surely, 2^72229892968 is an apocalyptic number.

It is an amenable number.

72229892968 is a deficient number, since it is larger than the sum of its proper divisors (65248073432).

72229892968 is a wasteful number, since it uses less digits than its factorization.

72229892968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25129 (or 25125 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 64.

The spelling of 72229892968 in words is "seventy-two billion, two hundred twenty-nine million, eight hundred ninety-two thousand, nine hundred sixty-eight".