28383738383 has 24 divisors (see below), whose sum is σ = 38790173520. Its totient is φ = 20415870720.

The previous prime is 28383738379. The next prime is 28383738389. The reversal of 28383738383 is 38383738382.

It is not a de Polignac number, because 28383738383 - 2² = 28383738379 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28383738389) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2018378 + ... + 2032391.

It is an arithmetic number, because the mean of its divisors is an integer number (1616257230).

Almost surely, 2^28383738383 is an apocalyptic number.

28383738383 is a deficient number, since it is larger than the sum of its proper divisors (10406435137).

28383738383 is a wasteful number, since it uses less digits than its factorization.

28383738383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050807 (or 4050800 counting only the distinct ones).

The product of its digits is 13934592, while the sum is 56.

Subtracting 28383738383 from its reverse (38383738382), we obtain a palindrome (9999999999).

The spelling of 28383738383 in words is "twenty-eight billion, three hundred eighty-three million, seven hundred thirty-eight thousand, three hundred eighty-three".