2649212648 has 16 divisors (see below), whose sum is σ = 4968600000. Its totient is φ = 1324252656.

The previous prime is 2649212641. The next prime is 2649212677. The reversal of 2649212648 is 8462129462.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2649212599 and 2649212608.

It is not an unprimeable number, because it can be changed into a prime (2649212641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10898 + ... + 73601.

It is an arithmetic number, because the mean of its divisors is an integer number (310537500).

Almost surely, 2^2649212648 is an apocalyptic number.

It is an amenable number.

2649212648 is a deficient number, since it is larger than the sum of its proper divisors (2319387352).

2649212648 is a wasteful number, since it uses less digits than its factorization.

2649212648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88424 (or 88420 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 2649212648 is about 51470.5026981474. The cubic root of 2649212648 is about 1383.6904385780.

The spelling of 2649212648 in words is "two billion, six hundred forty-nine million, two hundred twelve thousand, six hundred forty-eight".