38702021839 has 8 divisors (see below), whose sum is σ = 42301177520. Its totient is φ = 35191734336.

The previous prime is 38702021807. The next prime is 38702021851. The reversal of 38702021839 is 93812020783.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 38702021839 - 2⁵ = 38702021807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38702021795 and 38702021804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38702028839) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 22216134 + ... + 22217875.

It is an arithmetic number, because the mean of its divisors is an integer number (5287647190).

Almost surely, 2^38702021839 is an apocalyptic number.

38702021839 is a deficient number, since it is larger than the sum of its proper divisors (3599155681).

38702021839 is a wasteful number, since it uses less digits than its factorization.

38702021839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44434089.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 38702021839 in words is "thirty-eight billion, seven hundred two million, twenty-one thousand, eight hundred thirty-nine".