2044120443658 has 4 divisors (see below), whose sum is σ = 3066180665490. Its totient is φ = 1022060221828.

The previous prime is 2044120443641. The next prime is 2044120443683. The reversal of 2044120443658 is 8563440214402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1894898161809 + 149222281849 = 1376553^2 + 386293^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511030110913 + ... + 511030110916.

Almost surely, 2^{2044120443658} is an apocalyptic number.

2044120443658 is a deficient number, since it is larger than the sum of its proper divisors (1022060221832).

2044120443658 is a wasteful number, since it uses less digits than its factorization.

2044120443658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022060221831.

The product of its (nonzero) digits is 737280, while the sum is 43.

The spelling of 2044120443658 in words is "two trillion, forty-four billion, one hundred twenty million, four hundred forty-three thousand, six hundred fifty-eight".