2690119561 has 2 divisors, whose sum is σ = 2690119562. Its totient is φ = 2690119560.

The previous prime is 2690119477. The next prime is 2690119591. The reversal of 2690119561 is 1659110962.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2596513936 + 93605625 = 50956^2 + 9675^2 .

It is a cyclic number.

It is not a de Polignac number, because 2690119561 - 2¹⁹ = 2689595273 is a prime.

It is not a weakly prime, because it can be changed into another prime (2690119591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1345059780 + 1345059781.

It is an arithmetic number, because the mean of its divisors is an integer number (1345059781).

Almost surely, 2^2690119561 is an apocalyptic number.

It is an amenable number.

2690119561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2690119561 is an equidigital number, since it uses as much as digits as its factorization.

2690119561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 2690119561 is about 51866.3625194596. The cubic root of 2690119561 is about 1390.7760207933.

The spelling of 2690119561 in words is "two billion, six hundred ninety million, one hundred nineteen thousand, five hundred sixty-one".