38966500812 has 12 divisors (see below), whose sum is σ = 90921835256. Its totient is φ = 12988833600.

The previous prime is 38966500787. The next prime is 38966500817. The reversal of 38966500812 is 21800566983.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (38966500817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1623604189 + ... + 1623604212.

Almost surely, 2^38966500812 is an apocalyptic number.

It is an amenable number.

38966500812 is an abundant number, since it is smaller than the sum of its proper divisors (51955334444).

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

38966500812 is a wasteful number, since it uses less digits than its factorization.

38966500812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3247208408 (or 3247208406 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 38966500812 in words is "thirty-eight billion, nine hundred sixty-six million, five hundred thousand, eight hundred twelve".