2644630848 has 42 divisors (see below), whose sum is σ = 7580358474. Its totient is φ = 881543424.

The previous prime is 2644630847. The next prime is 2644630853. The reversal of 2644630848 is 8480364462.

2644630848 is a `hidden beast` number, since 2 + 6 + 4 + 4 + 630 + 8 + 4 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2274145344 + 370485504 = 47688^2 + 19248^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644630841) 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, 2295111 + ... + 2296262.

Almost surely, 2^2644630848 is an apocalyptic number.

It is an amenable number.

2644630848 is an abundant number, since it is smaller than the sum of its proper divisors (4935727626).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2644630848 is a wasteful number, since it uses less digits than its factorization.

2644630848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591391 (or 4591378 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 45.

The square root of 2644630848 is about 51425.9744487161. The cubic root of 2644630848 is about 1382.8922830390.

The spelling of 2644630848 in words is "two billion, six hundred forty-four million, six hundred thirty thousand, eight hundred forty-eight".