1766116379 has 2 divisors, whose sum is σ = 1766116380. Its totient is φ = 1766116378.

The previous prime is 1766116357. The next prime is 1766116421. The reversal of 1766116379 is 9736116671.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1766116379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1766118379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 883058189 + 883058190.

It is an arithmetic number, because the mean of its divisors is an integer number (883058190).

Almost surely, 2^1766116379 is an apocalyptic number.

1766116379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1766116379 is an equidigital number, since it uses as much as digits as its factorization.

1766116379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 285768, while the sum is 47.

The square root of 1766116379 is about 42025.1874356320. The cubic root of 1766116379 is about 1208.7591448037.

The spelling of 1766116379 in words is "one billion, seven hundred sixty-six million, one hundred sixteen thousand, three hundred seventy-nine".