6838644282471 has 20 divisors (see below), whose sum is σ = 10215883781664. Its totient is φ = 4559037631200.

The previous prime is 6838644282469. The next prime is 6838644282511. The reversal of 6838644282471 is 1742824468386.

It is a happy number.

6838644282471 is a `hidden beast` number, since 6 + 8 + 3 + 86 + 4 + 4 + 2 + 82 + 471 = 666.

It is not a de Polignac number, because 6838644282471 - 2¹ = 6838644282469 is a prime.

It is a super-3 number, since 3×6838644282471³ (a number of 39 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6838644282399 and 6838644282408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6838644282271) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6338931 + ... + 7338891.

Almost surely, 2^{6838644282471} is an apocalyptic number.

6838644282471 is a deficient number, since it is larger than the sum of its proper divisors (3377239499193).

6838644282471 is an equidigital number, since it uses as much as digits as its factorization.

6838644282471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084404 (or 1084395 counting only the distinct ones).

The product of its digits is 99090432, while the sum is 63.

The spelling of 6838644282471 in words is "six trillion, eight hundred thirty-eight billion, six hundred forty-four million, two hundred eighty-two thousand, four hundred seventy-one".