38511440736 has 36 divisors (see below), whose sum is σ = 101097579492. Its totient is φ = 12836505984.

The previous prime is 38511440731. The next prime is 38511440777. The reversal of 38511440736 is 63704411583.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38511440731) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1912770 + ... + 1932798.

It is an arithmetic number, because the mean of its divisors is an integer number (2808266097).

Almost surely, 2^38511440736 is an apocalyptic number.

It is an amenable number.

38511440736 is an abundant number, since it is smaller than the sum of its proper divisors (62586138756).

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

38511440736 is an frugal number, since it uses more digits than its factorization.

38511440736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40071 (or 20034 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 38511440736 in words is "thirty-eight billion, five hundred eleven million, four hundred forty thousand, seven hundred thirty-six".