6881434542 has 20 divisors (see below), whose sum is σ = 15419511096. Its totient is φ = 2293811460.

The previous prime is 6881434541. The next prime is 6881434579. The reversal of 6881434542 is 2454341886.

6881434542 is a `hidden beast` number, since 68 + 8 + 1 + 43 + 4 + 542 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6881434541) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 21238834 + ... + 21239157.

Almost surely, 2^6881434542 is an apocalyptic number.

6881434542 is an abundant number, since it is smaller than the sum of its proper divisors (8538076554).

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

6881434542 is a wasteful number, since it uses less digits than its factorization.

6881434542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42478005 (or 42477996 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 6881434542 is about 82954.4124323716. The cubic root of 6881434542 is about 1902.0692637655.

The spelling of 6881434542 in words is "six billion, eight hundred eighty-one million, four hundred thirty-four thousand, five hundred forty-two".