38689983503439 has 4 divisors (see below), whose sum is σ = 51586644671256. Its totient is φ = 25793322335624.

The previous prime is 38689983503309. The next prime is 38689983503443. The reversal of 38689983503439 is 93430538998683.

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

It is a cyclic number.

It is not a de Polignac number, because 38689983503439 - 2¹⁷ = 38689983372367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38689983503459) 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, 6448330583904 + ... + 6448330583909.

It is an arithmetic number, because the mean of its divisors is an integer number (12896661167814).

Almost surely, 2^{38689983503439} is an apocalyptic number.

38689983503439 is a deficient number, since it is larger than the sum of its proper divisors (12896661167817).

38689983503439 is a wasteful number, since it uses less digits than its factorization.

38689983503439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12896661167816.

The product of its (nonzero) digits is 3627970560, while the sum is 78.

The spelling of 38689983503439 in words is "thirty-eight trillion, six hundred eighty-nine billion, nine hundred eighty-three million, five hundred three thousand, four hundred thirty-nine".