6881434540 has 24 divisors (see below), whose sum is σ = 14452673760. Its totient is φ = 2752257408.

The previous prime is 6881434537. The next prime is 6881434541. The reversal of 6881434540 is 454341886.

It is not an unprimeable number, because it can be changed into a prime (6881434541) 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 7 ways as a sum of consecutive naturals, for example, 245064 + ... + 271696.

It is an arithmetic number, because the mean of its divisors is an integer number (602194740).

Almost surely, 2^6881434540 is an apocalyptic number.

It is an amenable number.

6881434540 is an abundant number, since it is smaller than the sum of its proper divisors (7571239220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6881434540 is a wasteful number, since it uses less digits than its factorization.

6881434540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39561 (or 39559 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 43.

The square root of 6881434540 is about 82954.4124203167. The cubic root of 6881434540 is about 1902.0692635812.

The spelling of 6881434540 in words is "six billion, eight hundred eighty-one million, four hundred thirty-four thousand, five hundred forty".