6874778512 has 160 divisors (see below), whose sum is σ = 17554233600. Its totient is φ = 2536095744.

The previous prime is 6874778489. The next prime is 6874778513. The reversal of 6874778512 is 2158774786.

It is not an unprimeable number, because it can be changed into a prime (6874778513) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1045828 + ... + 1052380.

It is an arithmetic number, because the mean of its divisors is an integer number (109713960).

Almost surely, 2^6874778512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6874778512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8777116800).

6874778512 is an abundant number, since it is smaller than the sum of its proper divisors (10679455088).

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

6874778512 is a wasteful number, since it uses less digits than its factorization.

6874778512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633 (or 6627 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 55.

The square root of 6874778512 is about 82914.2841252338. The cubic root of 6874778512 is about 1901.4558105654.

The spelling of 6874778512 in words is "six billion, eight hundred seventy-four million, seven hundred seventy-eight thousand, five hundred twelve".