6878711844 has 81 divisors (see below), whose sum is σ = 18207012369. Its totient is φ = 2189563200.

The previous prime is 6878711839. The next prime is 6878711857. The reversal of 6878711844 is 4481178786.

The square root of 6878711844 is 82938.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 5781777444 + 1096934400 = 76038^2 + 33120^2 .

It is a super-3 number, since 3×6878711844³ (a number of 30 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 11445144 + ... + 11445744.

Almost surely, 2^6878711844 is an apocalyptic number.

6878711844 is the 82938-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6878711844

6878711844 is an abundant number, since it is smaller than the sum of its proper divisors (11328300525).

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

6878711844 is a wasteful number, since it uses less digits than its factorization.

6878711844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258 (or 629 counting only the distinct ones).

The product of its digits is 2408448, while the sum is 54.

The cubic root of 6878711844 is about 1901.8183740561.

The spelling of 6878711844 in words is "six billion, eight hundred seventy-eight million, seven hundred eleven thousand, eight hundred forty-four".