38965760081361 has 6 divisors (see below), whose sum is σ = 56283875673090. Its totient is φ = 25977173387568.

The previous prime is 38965760081357. The next prime is 38965760081371. The reversal of 38965760081361 is 16318006756983.

38965760081361 is a `hidden beast` number, since 3 + 8 + 9 + 6 + 5 + 7 + 600 + 8 + 13 + 6 + 1 = 666.

38965760081361 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 only one way, i.e., 21659902160400 + 17305857920961 = 4654020^2 + 4160031^2 .

It is not a de Polignac number, because 38965760081361 - 2² = 38965760081357 is a prime.

It is a super-2 number, since 2×38965760081361² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38965760081371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2164764448956 + ... + 2164764448973.

It is an arithmetic number, because the mean of its divisors is an integer number (9380645945515).

Almost surely, 2^{38965760081361} is an apocalyptic number.

It is an amenable number.

38965760081361 is a deficient number, since it is larger than the sum of its proper divisors (17318115591729).

38965760081361 is a wasteful number, since it uses less digits than its factorization.

38965760081361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4329528897935 (or 4329528897932 counting only the distinct ones).

The product of its (nonzero) digits is 39191040, while the sum is 63.

The spelling of 38965760081361 in words is "thirty-eight trillion, nine hundred sixty-five billion, seven hundred sixty million, eighty-one thousand, three hundred sixty-one".