2544968648 has 16 divisors (see below), whose sum is σ = 4780391580. Its totient is φ = 1270197568.

The previous prime is 2544968627. The next prime is 2544968683. The reversal of 2544968648 is 8468694452.

It can be written as a sum of positive squares in 2 ways, for example, as 2014034884 + 530933764 = 44878^2 + 23042^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2544968593 and 2544968602.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281111 + ... + 290022.

Almost surely, 2^2544968648 is an apocalyptic number.

It is an amenable number.

2544968648 is a deficient number, since it is larger than the sum of its proper divisors (2235422932).

2544968648 is a wasteful number, since it uses less digits than its factorization.

2544968648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571696 (or 571692 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 56.

The square root of 2544968648 is about 50447.6822857106. The cubic root of 2544968648 is about 1365.2980779975.

The spelling of 2544968648 in words is "two billion, five hundred forty-four million, nine hundred sixty-eight thousand, six hundred forty-eight".