2428686664 has 16 divisors (see below), whose sum is σ = 4710815100. Its totient is φ = 1172469312.

The previous prime is 2428686643. The next prime is 2428686677. The reversal of 2428686664 is 4666868242.

It can be written as a sum of positive squares in 2 ways, for example, as 2202424900 + 226261764 = 46930^2 + 15042^2 .

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, 5234007 + ... + 5234470.

Almost surely, 2^2428686664 is an apocalyptic number.

It is an amenable number.

2428686664 is a deficient number, since it is larger than the sum of its proper divisors (2282128436).

2428686664 is a wasteful number, since it uses less digits than its factorization.

2428686664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10468512 (or 10468508 counting only the distinct ones).

The product of its digits is 5308416, while the sum is 52.

The square root of 2428686664 is about 49281.7071944550. The cubic root of 2428686664 is about 1344.1791749620.

The spelling of 2428686664 in words is "two billion, four hundred twenty-eight million, six hundred eighty-six thousand, six hundred sixty-four".