2871052649 has 2 divisors, whose sum is σ = 2871052650. Its totient is φ = 2871052648.

The previous prime is 2871052621. The next prime is 2871052651. The reversal of 2871052649 is 9462501782.

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., 2671339225 + 199713424 = 51685^2 + 14132^2 .

It is a cyclic number.

It is not a de Polignac number, because 2871052649 - 2²⁴ = 2854275433 is a prime.

Together with 2871052651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2871072649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1435526324 + 1435526325.

It is an arithmetic number, because the mean of its divisors is an integer number (1435526325).

Almost surely, 2^2871052649 is an apocalyptic number.

It is an amenable number.

2871052649 is a deficient number, since it is larger than the sum of its proper divisors (1).

2871052649 is an equidigital number, since it uses as much as digits as its factorization.

2871052649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 2871052649 is about 53582.2045925697. The cubic root of 2871052649 is about 1421.2824242617.

The spelling of 2871052649 in words is "two billion, eight hundred seventy-one million, fifty-two thousand, six hundred forty-nine".