38743685361481 has 2 divisors, whose sum is σ = 38743685361482. Its totient is φ = 38743685361480.

The previous prime is 38743685361431. The next prime is 38743685361643. The reversal of 38743685361481 is 18416358634783.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24732767972025 + 14010917389456 = 4973205^2 + 3743116^2 .

It is a cyclic number.

It is not a de Polignac number, because 38743685361481 - 2⁹ = 38743685360969 is a prime.

It is a super-2 number, since 2×38743685361481² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38743685361431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19371842680740 + 19371842680741.

It is an arithmetic number, because the mean of its divisors is an integer number (19371842680741).

Almost surely, 2^{38743685361481} is an apocalyptic number.

It is an amenable number.

38743685361481 is a deficient number, since it is larger than the sum of its proper divisors (1).

38743685361481 is an equidigital number, since it uses as much as digits as its factorization.

38743685361481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 278691840, while the sum is 67.

The spelling of 38743685361481 in words is "thirty-eight trillion, seven hundred forty-three billion, six hundred eighty-five million, three hundred sixty-one thousand, four hundred eighty-one".