3857385712439 has 8 divisors (see below), whose sum is σ = 4408477377408. Its totient is φ = 3306303188280.

The previous prime is 3857385712429. The next prime is 3857385712507. The reversal of 3857385712439 is 9342175837583.

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 3857385712439 - 2²⁴ = 3857368935223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3857385712429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1355717 + ... + 3090750.

It is an arithmetic number, because the mean of its divisors is an integer number (551059672176).

Almost surely, 2^{3857385712439} is an apocalyptic number.

3857385712439 is a deficient number, since it is larger than the sum of its proper divisors (551091664969).

3857385712439 is a wasteful number, since it uses less digits than its factorization.

3857385712439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570405.

The product of its digits is 152409600, while the sum is 65.

The spelling of 3857385712439 in words is "three trillion, eight hundred fifty-seven billion, three hundred eighty-five million, seven hundred twelve thousand, four hundred thirty-nine".