1766923345 has 16 divisors (see below), whose sum is σ = 2375581248. Its totient is φ = 1250303040.

The previous prime is 1766923283. The next prime is 1766923349. The reversal of 1766923345 is 5433296671.

It is not a de Polignac number, because 1766923345 - 2¹¹ = 1766921297 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1766923295 and 1766923304.

It is not an unprimeable number, because it can be changed into a prime (1766923349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 432099 + ... + 436168.

It is an arithmetic number, because the mean of its divisors is an integer number (148473828).

Almost surely, 2^1766923345 is an apocalyptic number.

It is an amenable number.

1766923345 is a deficient number, since it is larger than the sum of its proper divisors (608657903).

1766923345 is a wasteful number, since it uses less digits than its factorization.

1766923345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868320.

The product of its digits is 816480, while the sum is 46.

The square root of 1766923345 is about 42034.7873195524. The cubic root of 1766923345 is about 1208.9432170461.

It can be divided in two parts, 17669 and 23345, that added together give a palindrome (41014).

The spelling of 1766923345 in words is "one billion, seven hundred sixty-six million, nine hundred twenty-three thousand, three hundred forty-five".