2771424661 has 2 divisors, whose sum is σ = 2771424662. Its totient is φ = 2771424660.

The previous prime is 2771424581. The next prime is 2771424679. The reversal of 2771424661 is 1664241772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2420049636 + 351375025 = 49194^2 + 18745^2 .

It is a cyclic number.

It is not a de Polignac number, because 2771424661 - 2¹³ = 2771416469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2771424361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385712330 + 1385712331.

It is an arithmetic number, because the mean of its divisors is an integer number (1385712331).

Almost surely, 2^2771424661 is an apocalyptic number.

It is an amenable number.

2771424661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2771424661 is an equidigital number, since it uses as much as digits as its factorization.

2771424661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 40.

The square root of 2771424661 is about 52644.3222104720. The cubic root of 2771424661 is about 1404.6486055282.

The spelling of 2771424661 in words is "two billion, seven hundred seventy-one million, four hundred twenty-four thousand, six hundred sixty-one".