1768221914 has 16 divisors (see below), whose sum is σ = 2726550720. Its totient is φ = 859713120.

The previous prime is 1768221839. The next prime is 1768221953. The reversal of 1768221914 is 4191228671.

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 7 ways as a sum of consecutive naturals, for example, 74924 + ... + 95655.

It is an arithmetic number, because the mean of its divisors is an integer number (170409420).

Almost surely, 2^1768221914 is an apocalyptic number.

1768221914 is a deficient number, since it is larger than the sum of its proper divisors (958328806).

1768221914 is a wasteful number, since it uses less digits than its factorization.

1768221914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170725.

The product of its digits is 48384, while the sum is 41.

The square root of 1768221914 is about 42050.2308435994. The cubic root of 1768221914 is about 1209.2393083200.

The spelling of 1768221914 in words is "one billion, seven hundred sixty-eight million, two hundred twenty-one thousand, nine hundred fourteen".