3838447671405 has 32 divisors (see below), whose sum is σ = 6161641125120. Its totient is φ = 2040469401600.

The previous prime is 3838447671403. The next prime is 3838447671479. The reversal of 3838447671405 is 5041767448383.

It is not a de Polignac number, because 3838447671405 - 2¹ = 3838447671403 is a prime.

It is a super-2 number, since 2×3838447671405² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3838447671403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10881805 + ... + 11229005.

It is an arithmetic number, because the mean of its divisors is an integer number (192551285160).

Almost surely, 2^{3838447671405} is an apocalyptic number.

It is an amenable number.

3838447671405 is a deficient number, since it is larger than the sum of its proper divisors (2323193453715).

3838447671405 is a wasteful number, since it uses less digits than its factorization.

3838447671405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349621.

The product of its (nonzero) digits is 54190080, while the sum is 60.

The spelling of 3838447671405 in words is "three trillion, eight hundred thirty-eight billion, four hundred forty-seven million, six hundred seventy-one thousand, four hundred five".