6424528678 has 4 divisors (see below), whose sum is σ = 9636793020. Its totient is φ = 3212264338.

The previous prime is 6424528673. The next prime is 6424528679. The reversal of 6424528678 is 8768254246.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6424528673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606132168 + ... + 1606132171.

It is an arithmetic number, because the mean of its divisors is an integer number (2409198255).

Almost surely, 2^6424528678 is an apocalyptic number.

6424528678 is a deficient number, since it is larger than the sum of its proper divisors (3212264342).

6424528678 is a wasteful number, since it uses less digits than its factorization.

6424528678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212264341.

The product of its digits is 5160960, while the sum is 52.

The square root of 6424528678 is about 80153.1576296280. The cubic root of 6424528678 is about 1859.0044271288.

The spelling of 6424528678 in words is "six billion, four hundred twenty-four million, five hundred twenty-eight thousand, six hundred seventy-eight".