6628585490 has 8 divisors (see below), whose sum is σ = 11931453900. Its totient is φ = 2651434192.

The previous prime is 6628585433. The next prime is 6628585519. The reversal of 6628585490 is 945858266.

It can be written as a sum of positive squares in 2 ways, for example, as 5857912369 + 770673121 = 76537^2 + 27761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 331429265 + ... + 331429284.

Almost surely, 2^6628585490 is an apocalyptic number.

6628585490 is a deficient number, since it is larger than the sum of its proper divisors (5302868410).

6628585490 is a wasteful number, since it uses less digits than its factorization.

6628585490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662858556.

The product of its (nonzero) digits is 4147200, while the sum is 53.

The square root of 6628585490 is about 81416.1254912072. The cubic root of 6628585490 is about 1878.4816367599.

The spelling of 6628585490 in words is "six billion, six hundred twenty-eight million, five hundred eighty-five thousand, four hundred ninety".