1789992668 has 12 divisors (see below), whose sum is σ = 3141215280. Its totient is φ = 892502592.

The previous prime is 1789992583. The next prime is 1789992671. The reversal of 1789992668 is 8662999871.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 621821 + ... + 624692.

It is an arithmetic number, because the mean of its divisors is an integer number (261767940).

Almost surely, 2^1789992668 is an apocalyptic number.

It is an amenable number.

1789992668 is a deficient number, since it is larger than the sum of its proper divisors (1351222612).

1789992668 is a wasteful number, since it uses less digits than its factorization.

1789992668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246876 (or 1246874 counting only the distinct ones).

The product of its digits is 23514624, while the sum is 65.

The square root of 1789992668 is about 42308.3049530467. The cubic root of 1789992668 is about 1214.1818893757.

The spelling of 1789992668 in words is "one billion, seven hundred eighty-nine million, nine hundred ninety-two thousand, six hundred sixty-eight".