2856378684 has 24 divisors (see below), whose sum is σ = 6665839488. Its totient is φ = 951989680.

The previous prime is 2856378667. The next prime is 2856378697. The reversal of 2856378684 is 4868736582.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 105019 + ... + 129389.

It is an arithmetic number, because the mean of its divisors is an integer number (277743312).

Almost surely, 2^2856378684 is an apocalyptic number.

It is an amenable number.

2856378684 is an abundant number, since it is smaller than the sum of its proper divisors (3809460804).

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

2856378684 is a wasteful number, since it uses less digits than its factorization.

2856378684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34145 (or 34143 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 57.

The square root of 2856378684 is about 53445.0997192446. The cubic root of 2856378684 is about 1418.8568933052.

The spelling of 2856378684 in words is "two billion, eight hundred fifty-six million, three hundred seventy-eight thousand, six hundred eighty-four".