2711438649 has 6 divisors (see below), whose sum is σ = 3916522506. Its totient is φ = 1807625760.

The previous prime is 2711438629. The next prime is 2711438683. The reversal of 2711438649 is 9468341172.

It can be written as a sum of positive squares in only one way, i.e., 1650959424 + 1060479225 = 40632^2 + 32565^2 .

It is not a de Polignac number, because 2711438649 - 2⁵ = 2711438617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2711438629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150635472 + ... + 150635489.

It is an arithmetic number, because the mean of its divisors is an integer number (652753751).

Almost surely, 2^2711438649 is an apocalyptic number.

It is an amenable number.

2711438649 is a deficient number, since it is larger than the sum of its proper divisors (1205083857).

2711438649 is a wasteful number, since it uses less digits than its factorization.

2711438649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301270967 (or 301270964 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 2711438649 is about 52071.4763474208. The cubic root of 2711438649 is about 1394.4403057844.

The spelling of 2711438649 in words is "two billion, seven hundred eleven million, four hundred thirty-eight thousand, six hundred forty-nine".