1938250125019 has 12 divisors (see below), whose sum is σ = 2098862566416. Its totient is φ = 1789113604512.

The previous prime is 1938250124971. The next prime is 1938250125043. The reversal of 1938250125019 is 9105210528391.

It is not a de Polignac number, because 1938250125019 - 2⁹ = 1938250124507 is a prime.

It is a super-2 number, since 2×1938250125019² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1938250125019.

It is not an unprimeable number, because it can be changed into a prime (1938250125079) 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 11 ways as a sum of consecutive naturals, for example, 9499437 + ... + 9701329.

It is an arithmetic number, because the mean of its divisors is an integer number (174905213868).

Almost surely, 2^{1938250125019} is an apocalyptic number.

1938250125019 is a deficient number, since it is larger than the sum of its proper divisors (160612441397).

1938250125019 is a wasteful number, since it uses less digits than its factorization.

1938250125019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258726 (or 258713 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 46.

The spelling of 1938250125019 in words is "one trillion, nine hundred thirty-eight billion, two hundred fifty million, one hundred twenty-five thousand, nineteen".