9738181807236 has 99 divisors (see below), whose sum is σ = 25566564652293. Its totient is φ = 3245555064240.

The previous prime is 9738181807213. The next prime is 9738181807261. The reversal of 9738181807236 is 6327081818379.

The square root of 9738181807236 is 3120606.

It is a perfect power (a square), and thus also a powerful number.

9738181807236 is a `hidden beast` number, since 9 + 7 + 381 + 8 + 18 + 0 + 7 + 236 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2696801133636 + 7041380673600 = 1642194^2 + 2653560^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 32 ways as a sum of consecutive naturals, for example, 1516611306 + ... + 1516617726.

Almost surely, 2^{9738181807236} is an apocalyptic number.

9738181807236 is the 3120606-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9738181807236

9738181807236 is an abundant number, since it is smaller than the sum of its proper divisors (15828382845057).

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

9738181807236 is an frugal number, since it uses more digits than its factorization.

9738181807236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12876 (or 6426 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 63.

The spelling of 9738181807236 in words is "nine trillion, seven hundred thirty-eight billion, one hundred eighty-one million, eight hundred seven thousand, two hundred thirty-six".