39838149634671 has 96 divisors (see below), whose sum is σ = 63538288220160. Its totient is φ = 23977429926912.

The previous prime is 39838149634513. The next prime is 39838149634681. The reversal of 39838149634671 is 17643694183893.

39838149634671 is a `hidden beast` number, since 3 + 9 + 8 + 38 + 1 + 496 + 34 + 6 + 71 = 666.

It is not a de Polignac number, because 39838149634671 - 2¹⁰ = 39838149633647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39838149634671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39838149634681) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 40187260 + ... + 41166638.

It is an arithmetic number, because the mean of its divisors is an integer number (661857168960).

Almost surely, 2^{39838149634671} is an apocalyptic number.

39838149634671 is a deficient number, since it is larger than the sum of its proper divisors (23700138585489).

39838149634671 is a wasteful number, since it uses less digits than its factorization.

39838149634671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979605 (or 979602 counting only the distinct ones).

The product of its digits is 564350976, while the sum is 72.

The spelling of 39838149634671 in words is "thirty-nine trillion, eight hundred thirty-eight billion, one hundred forty-nine million, six hundred thirty-four thousand, six hundred seventy-one".