2726154661 has 2 divisors, whose sum is σ = 2726154662. Its totient is φ = 2726154660.

The previous prime is 2726154653. The next prime is 2726154679. The reversal of 2726154661 is 1664516272.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2040238561 + 685916100 = 45169^2 + 26190^2 .

It is a cyclic number.

It is not a de Polignac number, because 2726154661 - 2³ = 2726154653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2726154161) 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, 1363077330 + 1363077331.

It is an arithmetic number, because the mean of its divisors is an integer number (1363077331).

Almost surely, 2^2726154661 is an apocalyptic number.

It is an amenable number.

2726154661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2726154661 is an equidigital number, since it uses as much as digits as its factorization.

2726154661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 2726154661 is about 52212.5910197914. The cubic root of 2726154661 is about 1396.9584754210.

The spelling of 2726154661 in words is "two billion, seven hundred twenty-six million, one hundred fifty-four thousand, six hundred sixty-one".