2654661271 has 2 divisors, whose sum is σ = 2654661272. Its totient is φ = 2654661270.

The previous prime is 2654661187. The next prime is 2654661283. The reversal of 2654661271 is 1721664562.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2654661271 - 2¹⁵ = 2654628503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2654667271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327330635 + 1327330636.

It is an arithmetic number, because the mean of its divisors is an integer number (1327330636).

Almost surely, 2^2654661271 is an apocalyptic number.

2654661271 is a deficient number, since it is larger than the sum of its proper divisors (1).

2654661271 is an equidigital number, since it uses as much as digits as its factorization.

2654661271 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 2654661271 is about 51523.4050796335. The cubic root of 2654661271 is about 1384.6383988251.

The spelling of 2654661271 in words is "two billion, six hundred fifty-four million, six hundred sixty-one thousand, two hundred seventy-one".