6604340427 has 10 divisors (see below), whose sum is σ = 9865743228. Its totient is φ = 4402893564.

The previous prime is 6604340399. The next prime is 6604340437. The reversal of 6604340427 is 7240434066.

6604340427 is a `hidden beast` number, since 6 + 604 + 3 + 4 + 0 + 42 + 7 = 666.

It is not a de Polignac number, because 6604340427 - 2²² = 6600146123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6604340391 and 6604340400.

It is not an unprimeable number, because it can be changed into a prime (6604340437) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 40767453 + ... + 40767614.

Almost surely, 2^6604340427 is an apocalyptic number.

6604340427 is a deficient number, since it is larger than the sum of its proper divisors (3261402801).

6604340427 is an equidigital number, since it uses as much as digits as its factorization.

6604340427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81535079 (or 81535070 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The square root of 6604340427 is about 81267.0931373825. The cubic root of 6604340427 is about 1876.1885609730.

The spelling of 6604340427 in words is "six billion, six hundred four million, three hundred forty thousand, four hundred twenty-seven".