38388068781636 has 48 divisors (see below), whose sum is σ = 103518387745920. Its totient is φ = 10844783473920.

The previous prime is 38388068781599. The next prime is 38388068781707. The reversal of 38388068781636 is 63618786088383.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2567412855 + ... + 2567427806.

It is an arithmetic number, because the mean of its divisors is an integer number (2156633078040).

Almost surely, 2^{38388068781636} is an apocalyptic number.

It is an amenable number.

38388068781636 is an abundant number, since it is smaller than the sum of its proper divisors (65130318964284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38388068781636 is a wasteful number, since it uses less digits than its factorization.

38388068781636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5134840764 (or 5134840762 counting only the distinct ones).

The product of its (nonzero) digits is 1337720832, while the sum is 75.

The spelling of 38388068781636 in words is "thirty-eight trillion, three hundred eighty-eight billion, sixty-eight million, seven hundred eighty-one thousand, six hundred thirty-six".