6881881372441 has 2 divisors, whose sum is σ = 6881881372442. Its totient is φ = 6881881372440.

The previous prime is 6881881372439. The next prime is 6881881372469. The reversal of 6881881372441 is 1442731881886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3975637210000 + 2906244162441 = 1993900^2 + 1704771^2 .

It is a cyclic number.

It is not a de Polignac number, because 6881881372441 - 2¹ = 6881881372439 is a prime.

Together with 6881881372439, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 6881881372441.

It is not a weakly prime, because it can be changed into another prime (6881881372411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440940686220 + 3440940686221.

It is an arithmetic number, because the mean of its divisors is an integer number (3440940686221).

Almost surely, 2^{6881881372441} is an apocalyptic number.

It is an amenable number.

6881881372441 is a deficient number, since it is larger than the sum of its proper divisors (1).

6881881372441 is an equidigital number, since it uses as much as digits as its factorization.

6881881372441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16515072, while the sum is 61.

The spelling of 6881881372441 in words is "six trillion, eight hundred eighty-one billion, eight hundred eighty-one million, three hundred seventy-two thousand, four hundred forty-one".