2611620673 has 2 divisors, whose sum is σ = 2611620674. Its totient is φ = 2611620672.

The previous prime is 2611620587. The next prime is 2611620677. The reversal of 2611620673 is 3760261162.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2009997889 + 601622784 = 44833^2 + 24528^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2611620673 is a prime.

It is not a weakly prime, because it can be changed into another prime (2611620677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1305810336 + 1305810337.

It is an arithmetic number, because the mean of its divisors is an integer number (1305810337).

Almost surely, 2^2611620673 is an apocalyptic number.

It is an amenable number.

2611620673 is a deficient number, since it is larger than the sum of its proper divisors (1).

2611620673 is an equidigital number, since it uses as much as digits as its factorization.

2611620673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 2611620673 is about 51104.0181688290. The cubic root of 2611620673 is about 1377.1144412108.

The spelling of 2611620673 in words is "two billion, six hundred eleven million, six hundred twenty thousand, six hundred seventy-three".