6648604587 has 6 divisors (see below), whose sum is σ = 9603539972. Its totient is φ = 4432403052.

The previous prime is 6648604517. The next prime is 6648604601. The reversal of 6648604587 is 7854068466.

It is not a de Polignac number, because 6648604587 - 2¹⁴ = 6648588203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6648604517) 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 5 ways as a sum of consecutive naturals, for example, 369366913 + ... + 369366930.

Almost surely, 2^6648604587 is an apocalyptic number.

6648604587 is a deficient number, since it is larger than the sum of its proper divisors (2954935385).

6648604587 is a wasteful number, since it uses less digits than its factorization.

6648604587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738733849 (or 738733846 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 54.

The square root of 6648604587 is about 81538.9758765708. The cubic root of 6648604587 is about 1880.3708136632.

The spelling of 6648604587 in words is "six billion, six hundred forty-eight million, six hundred four thousand, five hundred eighty-seven".