6787878400 has 60 divisors (see below), whose sum is σ = 16817530752. Its totient is φ = 2715146240.

The previous prime is 6787878379. The next prime is 6787878403. The reversal of 6787878400 is 48787876.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6787878403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252352 + ... + 277951.

Almost surely, 2^6787878400 is an apocalyptic number.

It is an amenable number.

6787878400 is an abundant number, since it is smaller than the sum of its proper divisors (10029652352).

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

6787878400 is an equidigital number, since it uses as much as digits as its factorization.

6787878400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530331 (or 530310 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 55.

The square root of 6787878400 is about 82388.5817331504. The cubic root of 6787878400 is about 1893.4100786630.

The spelling of 6787878400 in words is "six billion, seven hundred eighty-seven million, eight hundred seventy-eight thousand, four hundred".