6881434541 has 2 divisors, whose sum is σ = 6881434542. Its totient is φ = 6881434540.

The previous prime is 6881434537. The next prime is 6881434579. The reversal of 6881434541 is 1454341886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6826229641 + 55204900 = 82621^2 + 7430^2 .

It is a cyclic number.

It is not a de Polignac number, because 6881434541 - 2² = 6881434537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6881434492 and 6881434501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6881434531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440717270 + 3440717271.

It is an arithmetic number, because the mean of its divisors is an integer number (3440717271).

Almost surely, 2^6881434541 is an apocalyptic number.

It is an amenable number.

6881434541 is a deficient number, since it is larger than the sum of its proper divisors (1).

6881434541 is an equidigital number, since it uses as much as digits as its factorization.

6881434541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 368640, while the sum is 44.

The square root of 6881434541 is about 82954.4124263441. The cubic root of 6881434541 is about 1902.0692636734.

The spelling of 6881434541 in words is "six billion, eight hundred eighty-one million, four hundred thirty-four thousand, five hundred forty-one".