6862288442409 has 27 divisors (see below), whose sum is σ = 10005215204439. Its totient is φ = 4532321945520.

The previous prime is 6862288442407. The next prime is 6862288442411. The reversal of 6862288442409 is 9042448822686.

The square root of 6862288442409 is 2619597.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (6862288442407) and next prime (6862288442411).

It can be written as a sum of positive squares in only one way, i.e., 4782982122009 + 2079306320400 = 2187003^2 + 1441980^2 .

It is not a de Polignac number, because 6862288442409 - 2¹ = 6862288442407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6862288442407) 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 26 ways as a sum of consecutive naturals, for example, 856604214 + ... + 856612224.

Almost surely, 2^{6862288442409} is an apocalyptic number.

6862288442409 is the 2619597-th square number.

6862288442409 is the 1309799-th centered octagonal number.

It is an amenable number.

6862288442409 is a deficient number, since it is larger than the sum of its proper divisors (3142926762030).

6862288442409 is an frugal number, since it uses more digits than its factorization.

6862288442409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16246 (or 8123 counting only the distinct ones).

The product of its (nonzero) digits is 84934656, while the sum is 63.

The spelling of 6862288442409 in words is "six trillion, eight hundred sixty-two billion, two hundred eighty-eight million, four hundred forty-two thousand, four hundred nine".