7291728272 has 40 divisors (see below), whose sum is σ = 14751567744. Its totient is φ = 3485078784.

The previous prime is 7291728263. The next prime is 7291728307. The reversal of 7291728272 is 2728271927.

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, 650588 + ... + 661700.

Almost surely, 2^7291728272 is an apocalyptic number.

It is an amenable number.

7291728272 is an abundant number, since it is smaller than the sum of its proper divisors (7459839472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7291728272 is a wasteful number, since it uses less digits than its factorization.

7291728272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12927 (or 12921 counting only the distinct ones).

The product of its digits is 395136, while the sum is 47.

The square root of 7291728272 is about 85391.6171061305. The cubic root of 7291728272 is about 1939.1444372816.

The spelling of 7291728272 in words is "seven billion, two hundred ninety-one million, seven hundred twenty-eight thousand, two hundred seventy-two".