38538853869642 has 64 divisors (see below), whose sum is σ = 88320073420800. Its totient is φ = 10982196129600.

The previous prime is 38538853869631. The next prime is 38538853869643. The reversal of 38538853869642 is 24696835883583.

It is not an unprimeable number, because it can be changed into a prime (38538853869643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361980517 + ... + 362086967.

It is an arithmetic number, because the mean of its divisors is an integer number (1380001147200).

Almost surely, 2^{38538853869642} is an apocalyptic number.

38538853869642 is an abundant number, since it is smaller than the sum of its proper divisors (49781219551158).

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

38538853869642 is a wasteful number, since it uses less digits than its factorization.

38538853869642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129011.

The product of its digits is 7166361600, while the sum is 78.

The spelling of 38538853869642 in words is "thirty-eight trillion, five hundred thirty-eight billion, eight hundred fifty-three million, eight hundred sixty-nine thousand, six hundred forty-two".