2766491843 has 2 divisors, whose sum is σ = 2766491844. Its totient is φ = 2766491842.

The previous prime is 2766491809. The next prime is 2766491869. The reversal of 2766491843 is 3481946672.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2766491843 - 2¹⁶ = 2766426307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2766491791 and 2766491800.

It is not a weakly prime, because it can be changed into another prime (2766490843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383245921 + 1383245922.

It is an arithmetic number, because the mean of its divisors is an integer number (1383245922).

Almost surely, 2^2766491843 is an apocalyptic number.

2766491843 is a deficient number, since it is larger than the sum of its proper divisors (1).

2766491843 is an equidigital number, since it uses as much as digits as its factorization.

2766491843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 50.

The square root of 2766491843 is about 52597.4509173211. The cubic root of 2766491843 is about 1403.8147394712.

The spelling of 2766491843 in words is "two billion, seven hundred sixty-six million, four hundred ninety-one thousand, eight hundred forty-three".