5678428907 has 4 divisors (see below), whose sum is σ = 5685990816. Its totient is φ = 5670867000.

The previous prime is 5678428871. The next prime is 5678428979. The reversal of 5678428907 is 7098248765.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5678428907 - 2¹⁶ = 5678363371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5678428507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3779828 + ... + 3781329.

It is an arithmetic number, because the mean of its divisors is an integer number (1421497704).

Almost surely, 2^5678428907 is an apocalyptic number.

5678428907 is a deficient number, since it is larger than the sum of its proper divisors (7561909).

5678428907 is an equidigital number, since it uses as much as digits as its factorization.

5678428907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7561908.

The product of its (nonzero) digits is 6773760, while the sum is 56.

The square root of 5678428907 is about 75355.3508849902. The cubic root of 5678428907 is about 1784.0597597192.

The spelling of 5678428907 in words is "five billion, six hundred seventy-eight million, four hundred twenty-eight thousand, nine hundred seven".