72020343272 has 64 divisors (see below), whose sum is σ = 140333212800. Its totient is φ = 34625767680.

The previous prime is 72020343271. The next prime is 72020343281. The reversal of 72020343272 is 27234302027.

It is not an unprimeable number, because it can be changed into a prime (72020343271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20245718 + ... + 20249274.

It is an arithmetic number, because the mean of its divisors is an integer number (2192706450).

Almost surely, 2^72020343272 is an apocalyptic number.

It is an amenable number.

72020343272 is a deficient number, since it is larger than the sum of its proper divisors (68312869528).

72020343272 is a wasteful number, since it uses less digits than its factorization.

72020343272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4506 (or 4502 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 32.

Adding to 72020343272 its reverse (27234302027), we get a palindrome (99254645299).

The spelling of 72020343272 in words is "seventy-two billion, twenty million, three hundred forty-three thousand, two hundred seventy-two".