7282728277 has 12 divisors (see below), whose sum is σ = 8475866028. Its totient is φ = 6231209600.

The previous prime is 7282728263. The next prime is 7282728283. The reversal of 7282728277 is 7728272827.

It can be written as a sum of positive squares in 2 ways, for example, as 1930196356 + 5352531921 = 43934^2 + 73161^2 .

It is not a de Polignac number, because 7282728277 - 2¹⁵ = 7282695509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7282728877) 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 11 ways as a sum of consecutive naturals, for example, 1768174 + ... + 1772287.

It is an arithmetic number, because the mean of its divisors is an integer number (706322169).

Almost surely, 2^7282728277 is an apocalyptic number.

It is an amenable number.

7282728277 is a deficient number, since it is larger than the sum of its proper divisors (1193137751).

7282728277 is a wasteful number, since it uses less digits than its factorization.

7282728277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3540500 (or 3540489 counting only the distinct ones).

The product of its digits is 2458624, while the sum is 52.

The square root of 7282728277 is about 85338.9024829825. The cubic root of 7282728277 is about 1938.3462965746.

The spelling of 7282728277 in words is "seven billion, two hundred eighty-two million, seven hundred twenty-eight thousand, two hundred seventy-seven".