4081604836081 has 4 divisors (see below), whose sum is σ = 4082109556032. Its totient is φ = 4081100116132.

The previous prime is 4081604836051. The next prime is 4081604836093. The reversal of 4081604836081 is 1806384061804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 4081604836081 - 2⁷ = 4081604835953 is a prime.

It is a super-2 number, since 2×4081604836081² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4081604836051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252347845 + ... + 252364018.

It is an arithmetic number, because the mean of its divisors is an integer number (1020527389008).

Almost surely, 2^{4081604836081} is an apocalyptic number.

It is an amenable number.

4081604836081 is a deficient number, since it is larger than the sum of its proper divisors (504719951).

4081604836081 is an equidigital number, since it uses as much as digits as its factorization.

4081604836081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504719950.

The product of its (nonzero) digits is 884736, while the sum is 49.

Adding to 4081604836081 its reverse (1806384061804), we get a palindrome (5887988897885).

The spelling of 4081604836081 in words is "four trillion, eighty-one billion, six hundred four million, eight hundred thirty-six thousand, eighty-one".