1768684161 has 16 divisors (see below), whose sum is σ = 2440676160. Its totient is φ = 1137944640.

The previous prime is 1768684139. The next prime is 1768684171. The reversal of 1768684161 is 1614868671.

It is not a de Polignac number, because 1768684161 - 2¹³ = 1768675969 is a prime.

It is a super-2 number, since 2×1768684161² = 6256487322744547842, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1768684161.

It is not an unprimeable number, because it can be changed into a prime (1768684171) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 307831 + ... + 313523.

It is an arithmetic number, because the mean of its divisors is an integer number (152542260).

Almost surely, 2^1768684161 is an apocalyptic number.

It is an amenable number.

1768684161 is a deficient number, since it is larger than the sum of its proper divisors (671991999).

1768684161 is a wasteful number, since it uses less digits than its factorization.

1768684161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9296.

The product of its digits is 387072, while the sum is 48.

The square root of 1768684161 is about 42055.7268514051. The cubic root of 1768684161 is about 1209.3446718940.

The spelling of 1768684161 in words is "one billion, seven hundred sixty-eight million, six hundred eighty-four thousand, one hundred sixty-one".