2706646991 has 2 divisors, whose sum is σ = 2706646992. Its totient is φ = 2706646990.

The previous prime is 2706646981. The next prime is 2706647003. The reversal of 2706646991 is 1996466072.

2706646991 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 not a de Polignac number, because 2706646991 - 2⁶ = 2706646927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2706646931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1353323495 + 1353323496.

It is an arithmetic number, because the mean of its divisors is an integer number (1353323496).

Almost surely, 2^2706646991 is an apocalyptic number.

2706646991 is a deficient number, since it is larger than the sum of its proper divisors (1).

2706646991 is an equidigital number, since it uses as much as digits as its factorization.

2706646991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The square root of 2706646991 is about 52025.4456107778. The cubic root of 2706646991 is about 1393.6184025146.

The spelling of 2706646991 in words is "two billion, seven hundred six million, six hundred forty-six thousand, nine hundred ninety-one".