3864463111081 has 2 divisors, whose sum is σ = 3864463111082. Its totient is φ = 3864463111080.

The previous prime is 3864463111079. The next prime is 3864463111133. The reversal of 3864463111081 is 1801113644683.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3846383888400 + 18079222681 = 1961220^2 + 134459^2 .

It is a cyclic number.

It is not a de Polignac number, because 3864463111081 - 2¹ = 3864463111079 is a prime.

It is a super-3 number, since 3×3864463111081³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 3864463111079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3864463111021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1932231555540 + 1932231555541.

It is an arithmetic number, because the mean of its divisors is an integer number (1932231555541).

Almost surely, 2^{3864463111081} is an apocalyptic number.

It is an amenable number.

3864463111081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3864463111081 is an equidigital number, since it uses as much as digits as its factorization.

3864463111081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 331776, while the sum is 46.

The spelling of 3864463111081 in words is "three trillion, eight hundred sixty-four billion, four hundred sixty-three million, one hundred eleven thousand, eighty-one".