1947044218713 has 16 divisors (see below), whose sum is σ = 2923421233152. Its totient is φ = 1141961418000.

The previous prime is 1947044218619. The next prime is 1947044218793. The reversal of 1947044218713 is 3178124407491.

It is not a de Polignac number, because 1947044218713 - 2⁹ = 1947044218201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1947044218793) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 951633493 + ... + 951635538.

It is an arithmetic number, because the mean of its divisors is an integer number (182713827072).

Almost surely, 2^{1947044218713} is an apocalyptic number.

It is an amenable number.

1947044218713 is a deficient number, since it is larger than the sum of its proper divisors (976377014439).

1947044218713 is a wasteful number, since it uses less digits than its factorization.

1947044218713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903269076.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 1947044218713 in words is "one trillion, nine hundred forty-seven billion, forty-four million, two hundred eighteen thousand, seven hundred thirteen".