2538649811 has 2 divisors, whose sum is σ = 2538649812. Its totient is φ = 2538649810.

The previous prime is 2538649807. The next prime is 2538649819. The reversal of 2538649811 is 1189468352.

It is a happy number.

2538649811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2538649811 - 2² = 2538649807 is a prime.

It is not a weakly prime, because it can be changed into another prime (2538649819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269324905 + 1269324906.

It is an arithmetic number, because the mean of its divisors is an integer number (1269324906).

Almost surely, 2^2538649811 is an apocalyptic number.

2538649811 is a deficient number, since it is larger than the sum of its proper divisors (1).

2538649811 is an equidigital number, since it uses as much as digits as its factorization.

2538649811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 414720, while the sum is 47.

The square root of 2538649811 is about 50385.0157388087. The cubic root of 2538649811 is about 1364.1671870687.

The spelling of 2538649811 in words is "two billion, five hundred thirty-eight million, six hundred forty-nine thousand, eight hundred eleven".