39538818963 has 24 divisors (see below), whose sum is σ = 67375932416. Its totient is φ = 21864783600.

The previous prime is 39538818947. The next prime is 39538818967. The reversal of 39538818963 is 36981883593.

39538818963 is a `hidden beast` number, since 3 + 9 + 538 + 8 + 1 + 8 + 96 + 3 = 666.

It is not a de Polignac number, because 39538818963 - 2⁴ = 39538818947 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39538818963.

It is not an unprimeable number, because it can be changed into a prime (39538818967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10120633 + ... + 10124538.

Almost surely, 2^39538818963 is an apocalyptic number.

39538818963 is a deficient number, since it is larger than the sum of its proper divisors (27837113453).

39538818963 is a wasteful number, since it uses less digits than its factorization.

39538818963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20245215 (or 20245212 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 63.

The spelling of 39538818963 in words is "thirty-nine billion, five hundred thirty-eight million, eight hundred eighteen thousand, nine hundred sixty-three".