7282728269 has 4 divisors (see below), whose sum is σ = 7533856860. Its totient is φ = 7031599680.

The previous prime is 7282728263. The next prime is 7282728283. The reversal of 7282728269 is 9628272827.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9628272827 = 42863 ⋅224629.

It can be written as a sum of positive squares in 2 ways, for example, as 2890352644 + 4392375625 = 53762^2 + 66275^2 .

It is a cyclic number.

It is not a de Polignac number, because 7282728269 - 2²⁴ = 7265951053 is a prime.

It is a super-2 number, since 2×7282728269² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7282728269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7282728263) 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 3 ways as a sum of consecutive naturals, for example, 125564252 + ... + 125564309.

It is an arithmetic number, because the mean of its divisors is an integer number (1883464215).

Almost surely, 2^7282728269 is an apocalyptic number.

It is an amenable number.

7282728269 is a deficient number, since it is larger than the sum of its proper divisors (251128591).

7282728269 is a wasteful number, since it uses less digits than its factorization.

7282728269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251128590.

The product of its digits is 2709504, while the sum is 53.

The square root of 7282728269 is about 85338.9024361106. The cubic root of 7282728269 is about 1938.3462958649.

The spelling of 7282728269 in words is "seven billion, two hundred eighty-two million, seven hundred twenty-eight thousand, two hundred sixty-nine".