38489727672081 has 27 divisors (see below), whose sum is σ = 64673434798011. Its totient is φ = 21994055650224.

The previous prime is 38489727672061. The next prime is 38489727672083. The reversal of 38489727672081 is 18027672798483.

It is a happy number.

The square root of 38489727672081 is 6204009.

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

38489727672081 is a `hidden beast` number, since 3 + 8 + 489 + 7 + 2 + 7 + 67 + 2 + 0 + 81 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9448191111681 + 29041536560400 = 3073791^2 + 5389020^2 .

It is not a de Polignac number, because 38489727672081 - 2⁵ = 38489727672049 is a prime.

It is a super-2 number, since 2×38489727672081² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38489727672083) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 130136475 + ... + 130431903.

Almost surely, 2^{38489727672081} is an apocalyptic number.

38489727672081 is the 6204009-th square number.

38489727672081 is the 3102005-th centered octagonal number.

It is an amenable number.

38489727672081 is a deficient number, since it is larger than the sum of its proper divisors (26183707125930).

38489727672081 is an frugal number, since it uses more digits than its factorization.

38489727672081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590878 (or 295439 counting only the distinct ones).

The product of its (nonzero) digits is 455196672, while the sum is 72.

The spelling of 38489727672081 in words is "thirty-eight trillion, four hundred eighty-nine billion, seven hundred twenty-seven million, six hundred seventy-two thousand, eighty-one".