2658966943 has 2 divisors, whose sum is σ = 2658966944. Its totient is φ = 2658966942.

The previous prime is 2658966907. The next prime is 2658966949. The reversal of 2658966943 is 3496698562.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2658966943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2658966949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1329483471 + 1329483472.

It is an arithmetic number, because the mean of its divisors is an integer number (1329483472).

Almost surely, 2^2658966943 is an apocalyptic number.

2658966943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2658966943 is an equidigital number, since it uses as much as digits as its factorization.

2658966943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16796160, while the sum is 58.

The square root of 2658966943 is about 51565.1718022931. The cubic root of 2658966943 is about 1385.3865895070.

The spelling of 2658966943 in words is "two billion, six hundred fifty-eight million, nine hundred sixty-six thousand, nine hundred forty-three".