38885897436 has 12 divisors (see below), whose sum is σ = 90733760712. Its totient is φ = 12961965808.

The previous prime is 38885897419. The next prime is 38885897441. The reversal of 38885897436 is 63479858883.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×38885897436² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1620245715 + ... + 1620245738.

It is an arithmetic number, because the mean of its divisors is an integer number (7561146726).

Almost surely, 2^38885897436 is an apocalyptic number.

It is an amenable number.

38885897436 is an abundant number, since it is smaller than the sum of its proper divisors (51847863276).

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

38885897436 is a wasteful number, since it uses less digits than its factorization.

38885897436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3240491460 (or 3240491458 counting only the distinct ones).

The product of its digits is 278691840, while the sum is 69.

The spelling of 38885897436 in words is "thirty-eight billion, eight hundred eighty-five million, eight hundred ninety-seven thousand, four hundred thirty-six".