2549643848 has 16 divisors (see below), whose sum is σ = 4793904000. Its totient is φ = 1271269456.

The previous prime is 2549643847. The next prime is 2549643871. The reversal of 2549643848 is 8483469452.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2549643848.

It is not an unprimeable number, because it can be changed into a prime (2549643847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441008 + ... + 446751.

It is an arithmetic number, because the mean of its divisors is an integer number (299619000).

Almost surely, 2^2549643848 is an apocalyptic number.

It is an amenable number.

2549643848 is a deficient number, since it is larger than the sum of its proper divisors (2244260152).

2549643848 is a wasteful number, since it uses less digits than its factorization.

2549643848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888124 (or 888120 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 53.

The square root of 2549643848 is about 50493.9981383926. The cubic root of 2549643848 is about 1366.1336006587.

The spelling of 2549643848 in words is "two billion, five hundred forty-nine million, six hundred forty-three thousand, eight hundred forty-eight".