272240720321 has 8 divisors (see below), whose sum is σ = 272410126560. Its totient is φ = 272071369152.

The previous prime is 272240720291. The next prime is 272240720327. The reversal of 272240720321 is 123027042272.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-272240720321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (272240720327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13877906 + ... + 13897508.

It is an arithmetic number, because the mean of its divisors is an integer number (34051265820).

Almost surely, 2^272240720321 is an apocalyptic number.

It is an amenable number.

272240720321 is a deficient number, since it is larger than the sum of its proper divisors (169406239).

272240720321 is a wasteful number, since it uses less digits than its factorization.

272240720321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27535.

The product of its (nonzero) digits is 18816, while the sum is 32.

Adding to 272240720321 its reverse (123027042272), we get a palindrome (395267762593).

The spelling of 272240720321 in words is "two hundred seventy-two billion, two hundred forty million, seven hundred twenty thousand, three hundred twenty-one".