38871544481897 has 2 divisors, whose sum is σ = 38871544481898. Its totient is φ = 38871544481896.

The previous prime is 38871544481881. The next prime is 38871544481923. The reversal of 38871544481897 is 79818444517883.

38871544481897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25442097408256 + 13429447073641 = 5044016^2 + 3664621^2 .

It is a cyclic number.

It is not a de Polignac number, because 38871544481897 - 2⁴ = 38871544481881 is a prime.

It is a super-2 number, since 2×38871544481897² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (38871544481867) 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 as a sum of consecutive naturals, namely, 19435772240948 + 19435772240949.

It is an arithmetic number, because the mean of its divisors is an integer number (19435772240949).

Almost surely, 2^{38871544481897} is an apocalyptic number.

It is an amenable number.

38871544481897 is a deficient number, since it is larger than the sum of its proper divisors (1).

38871544481897 is an equidigital number, since it uses as much as digits as its factorization.

38871544481897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1734082560, while the sum is 77.

The spelling of 38871544481897 in words is "thirty-eight trillion, eight hundred seventy-one billion, five hundred forty-four million, four hundred eighty-one thousand, eight hundred ninety-seven".