38715868660 has 96 divisors (see below), whose sum is σ = 93981468672. Its totient is φ = 13122552960.

The previous prime is 38715868649. The next prime is 38715868661. The reversal of 38715868660 is 6686851783.

It is a junction number, because it is equal to n+sod(n) for n = 38715868595 and 38715868604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38715868661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9846895 + ... + 9850825.

It is an arithmetic number, because the mean of its divisors is an integer number (978973632).

Almost surely, 2^38715868660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38715868660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46990734336).

38715868660 is an abundant number, since it is smaller than the sum of its proper divisors (55265600012).

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

38715868660 is a wasteful number, since it uses less digits than its factorization.

38715868660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733 (or 4731 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 58.

The spelling of 38715868660 in words is "thirty-eight billion, seven hundred fifteen million, eight hundred sixty-eight thousand, six hundred sixty".