1938954294338 has 4 divisors (see below), whose sum is σ = 2908431441510. Its totient is φ = 969477147168.

The previous prime is 1938954294293. The next prime is 1938954294377. The reversal of 1938954294338 is 8334924598391.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1454756813689 + 484197480649 = 1206133^2 + 695843^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 484738573583 + ... + 484738573586.

Almost surely, 2^{1938954294338} is an apocalyptic number.

1938954294338 is a deficient number, since it is larger than the sum of its proper divisors (969477147172).

1938954294338 is an equidigital number, since it uses as much as digits as its factorization.

1938954294338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969477147171.

The product of its digits is 201553920, while the sum is 68.

The spelling of 1938954294338 in words is "one trillion, nine hundred thirty-eight billion, nine hundred fifty-four million, two hundred ninety-four thousand, three hundred thirty-eight".