1989095783441 has 16 divisors (see below), whose sum is σ = 2307342535680. Its totient is φ = 1699604976960.

The previous prime is 1989095783429. The next prime is 1989095783443. The reversal of 1989095783441 is 1443875909891.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1989095783441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1989095783443) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 107289026 + ... + 107307563.

It is an arithmetic number, because the mean of its divisors is an integer number (144208908480).

Almost surely, 2^{1989095783441} is an apocalyptic number.

It is an amenable number.

1989095783441 is a deficient number, since it is larger than the sum of its proper divisors (318246752239).

1989095783441 is a wasteful number, since it uses less digits than its factorization.

1989095783441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214596656.

The product of its (nonzero) digits is 78382080, while the sum is 68.

The spelling of 1989095783441 in words is "one trillion, nine hundred eighty-nine billion, ninety-five million, seven hundred eighty-three thousand, four hundred forty-one".