6649478598 has 32 divisors (see below), whose sum is σ = 15224495616. Its totient is φ = 1896640128.

The previous prime is 6649478567. The next prime is 6649478603. The reversal of 6649478598 is 8958749466.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108586 + ... + 158397.

It is an arithmetic number, because the mean of its divisors is an integer number (475765488).

Almost surely, 2^6649478598 is an apocalyptic number.

6649478598 is an abundant number, since it is smaller than the sum of its proper divisors (8575017018).

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

6649478598 is a wasteful number, since it uses less digits than its factorization.

6649478598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267588.

The product of its digits is 104509440, while the sum is 66.

The square root of 6649478598 is about 81544.3351680544. The cubic root of 6649478598 is about 1880.4532065294.

The spelling of 6649478598 in words is "six billion, six hundred forty-nine million, four hundred seventy-eight thousand, five hundred ninety-eight".