6881434531 has 2 divisors, whose sum is σ = 6881434532. Its totient is φ = 6881434530.

The previous prime is 6881434517. The next prime is 6881434537. The reversal of 6881434531 is 1354341886.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6881434531 - 2²⁷ = 6747216803 is a prime.

It is a super-3 number, since 3×6881434531³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (6881434537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3440717265 + 3440717266.

It is an arithmetic number, because the mean of its divisors is an integer number (3440717266).

Almost surely, 2^6881434531 is an apocalyptic number.

6881434531 is a deficient number, since it is larger than the sum of its proper divisors (1).

6881434531 is an equidigital number, since it uses as much as digits as its factorization.

6881434531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 276480, while the sum is 43.

The square root of 6881434531 is about 82954.4123660701. The cubic root of 6881434531 is about 1902.0692627520.

The spelling of 6881434531 in words is "six billion, eight hundred eighty-one million, four hundred thirty-four thousand, five hundred thirty-one".