2644189309882 has 16 divisors (see below), whose sum is σ = 4018251484800. Its totient is φ = 1304786826720.

The previous prime is 2644189309849. The next prime is 2644189309903. The reversal of 2644189309882 is 2889039814462.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3308032 + ... + 4028827.

It is an arithmetic number, because the mean of its divisors is an integer number (251140717800).

Almost surely, 2^{2644189309882} is an apocalyptic number.

2644189309882 is a deficient number, since it is larger than the sum of its proper divisors (1374062174918).

2644189309882 is a wasteful number, since it uses less digits than its factorization.

2644189309882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7339221.

The product of its (nonzero) digits is 47775744, while the sum is 64.

The spelling of 2644189309882 in words is "two trillion, six hundred forty-four billion, one hundred eighty-nine million, three hundred nine thousand, eight hundred eighty-two".