1938688894041 has 8 divisors (see below), whose sum is σ = 2584925201760. Its totient is φ = 1292455924512.

The previous prime is 1938688894007. The next prime is 1938688894073. The reversal of 1938688894041 is 1404988868391.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1938688894041 - 2¹⁸ = 1938688631897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1938688894841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1301886 + ... + 2360568.

It is an arithmetic number, because the mean of its divisors is an integer number (323115650220).

Almost surely, 2^{1938688894041} is an apocalyptic number.

It is an amenable number.

1938688894041 is a deficient number, since it is larger than the sum of its proper divisors (646236307719).

1938688894041 is a wasteful number, since it uses less digits than its factorization.

1938688894041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669095.

The product of its (nonzero) digits is 95551488, while the sum is 69.

The spelling of 1938688894041 in words is "one trillion, nine hundred thirty-eight billion, six hundred eighty-eight million, eight hundred ninety-four thousand, forty-one".