1938050995321 has 15 divisors (see below), whose sum is σ = 2261004545733. Its totient is φ = 1661128097580.

The previous prime is 1938050995313. The next prime is 1938050995357. The reversal of 1938050995321 is 1235990508391.

The square root of 1938050995321 is 1392139.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1938050995321 - 2³ = 1938050995313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1938050995021) 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 14 ways as a sum of consecutive naturals, for example, 68200606 + ... + 68229016.

Almost surely, 2^{1938050995321} is an apocalyptic number.

1938050995321 is the 1392139-th square number.

1938050995321 is the 696070-th centered octagonal number.

It is an amenable number.

1938050995321 is a deficient number, since it is larger than the sum of its proper divisors (322953550412).

1938050995321 is an frugal number, since it uses more digits than its factorization.

1938050995321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56850 (or 28418 counting only the distinct ones).

The product of its (nonzero) digits is 2624400, while the sum is 55.

The spelling of 1938050995321 in words is "one trillion, nine hundred thirty-eight billion, fifty million, nine hundred ninety-five thousand, three hundred twenty-one".