2163766679 has 2 divisors, whose sum is σ = 2163766680. Its totient is φ = 2163766678.

The previous prime is 2163766667. The next prime is 2163766741. The reversal of 2163766679 is 9766673612.

2163766679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2163766679 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2163766679.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163766279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081883339 + 1081883340.

It is an arithmetic number, because the mean of its divisors is an integer number (1081883340).

Almost surely, 2^2163766679 is an apocalyptic number.

2163766679 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163766679 is an equidigital number, since it uses as much as digits as its factorization.

2163766679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3429216, while the sum is 53.

The square root of 2163766679 is about 46516.3055175279. The cubic root of 2163766679 is about 1293.4117724787.

The spelling of 2163766679 in words is "two billion, one hundred sixty-three million, seven hundred sixty-six thousand, six hundred seventy-nine".