5684644278 has 24 divisors (see below), whose sum is σ = 12346001616. Its totient is φ = 1890378000.

The previous prime is 5684644253. The next prime is 5684644321. The reversal of 5684644278 is 8724464865.

It is a happy number.

5684644278 is a `hidden beast` number, since 56 + 84 + 6 + 442 + 78 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367498 + ... + 382653.

It is an arithmetic number, because the mean of its divisors is an integer number (514416734).

Almost surely, 2^5684644278 is an apocalyptic number.

5684644278 is an abundant number, since it is smaller than the sum of its proper divisors (6661357338).

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

5684644278 is a wasteful number, since it uses less digits than its factorization.

5684644278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750580 (or 750577 counting only the distinct ones).

The product of its digits is 10321920, while the sum is 54.

The square root of 5684644278 is about 75396.5800152766. The cubic root of 5684644278 is about 1784.7104414617.

It can be divided in two parts, 56846 and 44278, that added together give a square (101124 = 318²).

The spelling of 5684644278 in words is "five billion, six hundred eighty-four million, six hundred forty-four thousand, two hundred seventy-eight".