1944422244491 has 16 divisors (see below), whose sum is σ = 2017463777280. Its totient is φ = 1872926008800.

The previous prime is 1944422244481. The next prime is 1944422244493.

1944422244491 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 1944422244491 - 2²² = 1944418050187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1944422244493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 433631 + ... + 2019128.

It is an arithmetic number, because the mean of its divisors is an integer number (126091486080).

Almost surely, 2^{1944422244491} is an apocalyptic number.

1944422244491 is a deficient number, since it is larger than the sum of its proper divisors (73041532789).

1944422244491 is a wasteful number, since it uses less digits than its factorization.

1944422244491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453074.

The product of its digits is 2654208, while the sum is 50.

The spelling of 1944422244491 in words is "one trillion, nine hundred forty-four billion, four hundred twenty-two million, two hundred forty-four thousand, four hundred ninety-one".