1938853471443 has 16 divisors (see below), whose sum is σ = 2981548373760. Its totient is φ = 1097751898656.

The previous prime is 1938853471441. The next prime is 1938853471447. The reversal of 1938853471443 is 3441743588391.

It is not a de Polignac number, because 1938853471443 - 2¹ = 1938853471441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1938853471441) 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, 423513105 + ... + 423517682.

It is an arithmetic number, because the mean of its divisors is an integer number (186346773360).

Almost surely, 2^{1938853471443} is an apocalyptic number.

1938853471443 is a deficient number, since it is larger than the sum of its proper divisors (1042694902317).

1938853471443 is a wasteful number, since it uses less digits than its factorization.

1938853471443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847030906.

The product of its digits is 34836480, while the sum is 60.

The spelling of 1938853471443 in words is "one trillion, nine hundred thirty-eight billion, eight hundred fifty-three million, four hundred seventy-one thousand, four hundred forty-three".