2938394938393 has 4 divisors (see below), whose sum is σ = 2938721472000. Its totient is φ = 2938068404788.

The previous prime is 2938394938319. The next prime is 2938394938417. The reversal of 2938394938393 is 3938394938392.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2938394938393 - 2³⁷ = 2800955984921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2938394938093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163253305 + ... + 163271302.

It is an arithmetic number, because the mean of its divisors is an integer number (734680368000).

Almost surely, 2^{2938394938393} is an apocalyptic number.

It is an amenable number.

2938394938393 is a deficient number, since it is larger than the sum of its proper divisors (326533607).

2938394938393 is an equidigital number, since it uses as much as digits as its factorization.

2938394938393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326533606.

The product of its digits is 816293376, while the sum is 73.

Subtracting 2938394938393 from its reverse (3938394938392), we obtain a palindrome (999999999999).

The spelling of 2938394938393 in words is "two trillion, nine hundred thirty-eight billion, three hundred ninety-four million, nine hundred thirty-eight thousand, three hundred ninety-three".