6881434563 has 24 divisors (see below), whose sum is σ = 9587034288. Its totient is φ = 4390048768.

The previous prime is 6881434541. The next prime is 6881434579. The reversal of 6881434563 is 3654341886.

It is not a de Polignac number, because 6881434563 - 2⁵ = 6881434531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6881435563) 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 in 23 ways as a sum of consecutive naturals, for example, 273031 + ... + 297167.

It is an arithmetic number, because the mean of its divisors is an integer number (399459762).

Almost surely, 2^6881434563 is an apocalyptic number.

6881434563 is a deficient number, since it is larger than the sum of its proper divisors (2705599725).

6881434563 is a wasteful number, since it uses less digits than its factorization.

6881434563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24311 (or 24282 counting only the distinct ones).

The product of its digits is 1658880, while the sum is 48.

The square root of 6881434563 is about 82954.4125589471. The cubic root of 6881434563 is about 1902.0692657003.

The spelling of 6881434563 in words is "six billion, eight hundred eighty-one million, four hundred thirty-four thousand, five hundred sixty-three".