7272528073 has 6 divisors (see below), whose sum is σ = 7725488606. Its totient is φ = 6844732032.

The previous prime is 7272528071. The next prime is 7272528077. The reversal of 7272528073 is 3708252727.

7272528073 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 3399706249 + 3872821824 = 58307^2 + 62232^2 .

It is not a de Polignac number, because 7272528073 - 2¹ = 7272528071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7272528071) 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 5 ways as a sum of consecutive naturals, for example, 12581940 + ... + 12582517.

Almost surely, 2^7272528073 is an apocalyptic number.

It is an amenable number.

7272528073 is a deficient number, since it is larger than the sum of its proper divisors (452960533).

7272528073 is a wasteful number, since it uses less digits than its factorization.

7272528073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25164491 (or 25164474 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 43.

The square root of 7272528073 is about 85279.1186223216. The cubic root of 7272528073 is about 1937.4409231685.

The spelling of 7272528073 in words is "seven billion, two hundred seventy-two million, five hundred twenty-eight thousand, seventy-three".