38281090660 has 24 divisors (see below), whose sum is σ = 80806828536. Its totient is φ = 15233095680.

The previous prime is 38281090649. The next prime is 38281090663. The reversal of 38281090660 is 6609018283.

38281090660 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 4 ways, for example, as 24860196 + 38256230464 = 4986^2 + 195592^2 .

It is not an unprimeable number, because it can be changed into a prime (38281090663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4954831 + ... + 4962550.

It is an arithmetic number, because the mean of its divisors is an integer number (3366951189).

Almost surely, 2^38281090660 is an apocalyptic number.

It is an amenable number.

38281090660 is an abundant number, since it is smaller than the sum of its proper divisors (42525737876).

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

38281090660 is a wasteful number, since it uses less digits than its factorization.

38281090660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9917583 (or 9917581 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 38281090660 in words is "thirty-eight billion, two hundred eighty-one million, ninety thousand, six hundred sixty".