2662791647 has 2 divisors, whose sum is σ = 2662791648. Its totient is φ = 2662791646.

The previous prime is 2662791643. The next prime is 2662791667. The reversal of 2662791647 is 7461972662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2662791647 - 2² = 2662791643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2662791595 and 2662791604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2662791643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1331395823 + 1331395824.

It is an arithmetic number, because the mean of its divisors is an integer number (1331395824).

Almost surely, 2^2662791647 is an apocalyptic number.

2662791647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2662791647 is an equidigital number, since it uses as much as digits as its factorization.

2662791647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 50.

The square root of 2662791647 is about 51602.2445926531. The cubic root of 2662791647 is about 1386.0505259398.

The spelling of 2662791647 in words is "two billion, six hundred sixty-two million, seven hundred ninety-one thousand, six hundred forty-seven".