38817647420634 has 24 divisors (see below), whose sum is σ = 84105017529780. Its totient is φ = 12939198147648.

The previous prime is 38817647420623. The next prime is 38817647420653. The reversal of 38817647420634 is 43602474671883.

38817647420634 is a `hidden beast` number, since 3 + 8 + 8 + 176 + 4 + 7 + 420 + 6 + 34 = 666.

38817647420634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 38018137833225 + 799509587409 = 6165885^2 + 894153^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23990262 + ... + 25557150.

Almost surely, 2^{38817647420634} is an apocalyptic number.

38817647420634 is an abundant number, since it is smaller than the sum of its proper divisors (45287370109146).

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

38817647420634 is a wasteful number, since it uses less digits than its factorization.

38817647420634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943214 (or 2943211 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 63.

The spelling of 38817647420634 in words is "thirty-eight trillion, eight hundred seventeen billion, six hundred forty-seven million, four hundred twenty thousand, six hundred thirty-four".