2244639478105 has 8 divisors (see below), whose sum is σ = 2693578797000. Its totient is φ = 1795703966976.

The previous prime is 2244639478097. The next prime is 2244639478111. The reversal of 2244639478105 is 5018749364422.

It can be written as a sum of positive squares in 4 ways, for example, as 450933738256 + 1793705739849 = 671516^2 + 1339293^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2244639478105 - 2³ = 2244639478097 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 564571 + ... + 2192719.

It is an arithmetic number, because the mean of its divisors is an integer number (336697349625).

It is a 1-persistent number, because it is pandigital, but 2⋅2244639478105 = 4489278956210 is not.

Almost surely, 2^{2244639478105} is an apocalyptic number.

It is an amenable number.

2244639478105 is a deficient number, since it is larger than the sum of its proper divisors (448939318895).

2244639478105 is a wasteful number, since it uses less digits than its factorization.

2244639478105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903883.

The product of its (nonzero) digits is 11612160, while the sum is 55.

The spelling of 2244639478105 in words is "two trillion, two hundred forty-four billion, six hundred thirty-nine million, four hundred seventy-eight thousand, one hundred five".