1628327668 has 12 divisors (see below), whose sum is σ = 3108625632. Its totient is φ = 740148920.

The previous prime is 1628327653. The next prime is 1628327671. The reversal of 1628327668 is 8667238261.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18503680 + ... + 18503767.

It is an arithmetic number, because the mean of its divisors is an integer number (259052136).

Almost surely, 2^1628327668 is an apocalyptic number.

It is an amenable number.

1628327668 is a deficient number, since it is larger than the sum of its proper divisors (1480297964).

1628327668 is a wasteful number, since it uses less digits than its factorization.

1628327668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37007462 (or 37007460 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 1628327668 is about 40352.5422743103. The cubic root of 1628327668 is about 1176.4693055321.

The spelling of 1628327668 in words is "one billion, six hundred twenty-eight million, three hundred twenty-seven thousand, six hundred sixty-eight".