7287527817 has 12 divisors (see below), whose sum is σ = 10533041220. Its totient is φ = 4855300128.

The previous prime is 7287527789. The next prime is 7287527837. The reversal of 7287527817 is 7187257827.

It can be written as a sum of positive squares in 2 ways, for example, as 395373456 + 6892154361 = 19884^2 + 83019^2 .

It is not a de Polignac number, because 7287527817 - 2¹⁴ = 7287511433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7287527837) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239142 + ... + 267887.

It is an arithmetic number, because the mean of its divisors is an integer number (877753435).

Almost surely, 2^7287527817 is an apocalyptic number.

It is an amenable number.

7287527817 is a deficient number, since it is larger than the sum of its proper divisors (3245513403).

7287527817 is a wasteful number, since it uses less digits than its factorization.

7287527817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508632 (or 508629 counting only the distinct ones).

The product of its digits is 3073280, while the sum is 54.

The square root of 7287527817 is about 85367.0183208949. The cubic root of 7287527817 is about 1938.7720128395.

The spelling of 7287527817 in words is "seven billion, two hundred eighty-seven million, five hundred twenty-seven thousand, eight hundred seventeen".