38389288336281 has 27 divisors (see below), whose sum is σ = 56991401083071. Its totient is φ = 24900713896464.

The previous prime is 38389288336271. The next prime is 38389288336307. The reversal of 38389288336281 is 18263388298383.

The square root of 38389288336281 is 6195909.

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

38389288336281 is a `hidden beast` number, since 3 + 8 + 3 + 8 + 9 + 2 + 8 + 8 + 336 + 281 = 666.

It can be written as a sum of positive squares in only one way, i.e., 34351262390025 + 4038025946256 = 5860995^2 + 2009484^2 .

It is not a de Polignac number, because 38389288336281 - 2¹⁹ = 38389287811993 is a prime.

It is a super-2 number, since 2×38389288336281² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38389288336271) 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, 687717990 + ... + 687773808.

Almost surely, 2^{38389288336281} is an apocalyptic number.

38389288336281 is the 6195909-th square number.

38389288336281 is the 3097955-th centered octagonal number.

It is an amenable number.

38389288336281 is a deficient number, since it is larger than the sum of its proper divisors (18602112746790).

38389288336281 is an frugal number, since it uses more digits than its factorization.

38389288336281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111718 (or 55859 counting only the distinct ones).

The product of its digits is 573308928, while the sum is 72.

The spelling of 38389288336281 in words is "thirty-eight trillion, three hundred eighty-nine billion, two hundred eighty-eight million, three hundred thirty-six thousand, two hundred eighty-one".