6886126484449 has 27 divisors (see below), whose sum is σ = 7107233495313. Its totient is φ = 6671852087784.

The previous prime is 6886126484441. The next prime is 6886126484467. The reversal of 6886126484449 is 9444846216886.

The square root of 6886126484449 is 2624143.

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

It is not a de Polignac number, because 6886126484449 - 2³ = 6886126484441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6886126484441) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 12231130242 + ... + 12231130804.

Almost surely, 2^{6886126484449} is an apocalyptic number.

6886126484449 is the 2624143-rd square number.

6886126484449 is the 1312072-nd centered octagonal number.

It is an amenable number.

6886126484449 is a deficient number, since it is larger than the sum of its proper divisors (221107010864).

6886126484449 is an frugal number, since it uses more digits than its factorization.

6886126484449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402 (or 701 counting only the distinct ones).

The product of its digits is 509607936, while the sum is 70.

The spelling of 6886126484449 in words is "six trillion, eight hundred eighty-six billion, one hundred twenty-six million, four hundred eighty-four thousand, four hundred forty-nine".