6888378404 has 24 divisors (see below), whose sum is σ = 12256230168. Its totient is φ = 3386880000.

The previous prime is 6888378383. The next prime is 6888378407. The reversal of 6888378404 is 4048738886.

It can be written as a sum of positive squares in 4 ways, for example, as 1661377600 + 5227000804 = 40760^2 + 72298^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6888378404.

It is not an unprimeable number, because it can be changed into a prime (6888378407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63404 + ... + 133404.

It is an arithmetic number, because the mean of its divisors is an integer number (510676257).

Almost surely, 2^6888378404 is an apocalyptic number.

It is an amenable number.

6888378404 is a deficient number, since it is larger than the sum of its proper divisors (5367851764).

6888378404 is a wasteful number, since it uses less digits than its factorization.

6888378404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70415 (or 70413 counting only the distinct ones).

The product of its (nonzero) digits is 8257536, while the sum is 56.

The square root of 6888378404 is about 82996.2553613113. The cubic root of 6888378404 is about 1902.7088235541.

The spelling of 6888378404 in words is "six billion, eight hundred eighty-eight million, three hundred seventy-eight thousand, four hundred four".