6888888888877 has 2 divisors, whose sum is σ = 6888888888878. Its totient is φ = 6888888888876.

The previous prime is 6888888888821. The next prime is 6888888888929. The reversal of 6888888888877 is 7788888888886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5900483086281 + 988405802596 = 2429091^2 + 994186^2 .

It is a cyclic number.

It is not a de Polignac number, because 6888888888877 - 2²³ = 6888880500269 is a prime.

It is a super-2 number, since 2×6888888888877² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6888888880877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3444444444438 + 3444444444439.

It is an arithmetic number, because the mean of its divisors is an integer number (3444444444439).

Almost surely, 2^{6888888888877} is an apocalyptic number.

It is an amenable number.

6888888888877 is a deficient number, since it is larger than the sum of its proper divisors (1).

6888888888877 is an equidigital number, since it uses as much as digits as its factorization.

6888888888877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 315680096256, while the sum is 100.

Subtracting 6888888888877 from its reverse (7788888888886), we obtain a palindrome (900000000009).

The spelling of 6888888888877 in words is "six trillion, eight hundred eighty-eight billion, eight hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred seventy-seven".