2648334865 has 12 divisors (see below), whose sum is σ = 3493176372. Its totient is φ = 1926061280.

The previous prime is 2648334863. The next prime is 2648334877. The reversal of 2648334865 is 5684338462.

It can be written as a sum of positive squares in 2 ways, for example, as 351337536 + 2296997329 = 18744^2 + 47927^2 .

It is not a de Polignac number, because 2648334865 - 2¹ = 2648334863 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2648334863) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2188102 + ... + 2189311.

It is an arithmetic number, because the mean of its divisors is an integer number (291098031).

Almost surely, 2^2648334865 is an apocalyptic number.

It is an amenable number.

2648334865 is a deficient number, since it is larger than the sum of its proper divisors (844841507).

2648334865 is a wasteful number, since it uses less digits than its factorization.

2648334865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4377440 (or 4377429 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 49.

The square root of 2648334865 is about 51461.9749426700. The cubic root of 2648334865 is about 1383.5375989390.

The spelling of 2648334865 in words is "two billion, six hundred forty-eight million, three hundred thirty-four thousand, eight hundred sixty-five".