2644882909225 has 12 divisors (see below), whose sum is σ = 3279737186064. Its totient is φ = 2115853179920.

The previous prime is 2644882909177. The next prime is 2644882909243. The reversal of 2644882909225 is 5229092884462.

It is not a de Polignac number, because 2644882909225 - 2¹³ = 2644882901033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297799 + ... + 2319148.

It is an arithmetic number, because the mean of its divisors is an integer number (273311432172).

Almost surely, 2^{2644882909225} is an apocalyptic number.

2644882909225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2644882909225 is a deficient number, since it is larger than the sum of its proper divisors (634854276839).

2644882909225 is a wasteful number, since it uses less digits than its factorization.

2644882909225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657384 (or 2657379 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 61.

It can be divided in two parts, 264488 and 2909225, that added together give a palindrome (3173713).

The spelling of 2644882909225 in words is "two trillion, six hundred forty-four billion, eight hundred eighty-two million, nine hundred nine thousand, two hundred twenty-five".