6878840430 has 128 divisors (see below), whose sum is σ = 20608598016. Its totient is φ = 1427587200.

The previous prime is 6878840411. The next prime is 6878840447. The reversal of 6878840430 is 340488786.

It is a super-2 number, since 2×6878840430² = 94636891322805169800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6878840430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2703739 + ... + 2706281.

It is an arithmetic number, because the mean of its divisors is an integer number (161004672).

Almost surely, 2^6878840430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6878840430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10304299008).

6878840430 is an abundant number, since it is smaller than the sum of its proper divisors (13729757586).

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

6878840430 is a wasteful number, since it uses less digits than its factorization.

6878840430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742.

The product of its (nonzero) digits is 1032192, while the sum is 48.

The square root of 6878840430 is about 82938.7751898953. The cubic root of 6878840430 is about 1901.8302244189.

The spelling of 6878840430 in words is "six billion, eight hundred seventy-eight million, eight hundred forty thousand, four hundred thirty".