4027841268721 has 4 divisors (see below), whose sum is σ = 4033291663600. Its totient is φ = 4022390873844.

The previous prime is 4027841268719. The next prime is 4027841268749. The reversal of 4027841268721 is 1278621487204.

4027841268721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4027841268721 - 2¹ = 4027841268719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4027841268761) 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, 2725196331 + ... + 2725197808.

It is an arithmetic number, because the mean of its divisors is an integer number (1008322915900).

Almost surely, 2^{4027841268721} is an apocalyptic number.

It is an amenable number.

4027841268721 is a deficient number, since it is larger than the sum of its proper divisors (5450394879).

4027841268721 is an equidigital number, since it uses as much as digits as its factorization.

4027841268721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5450394878.

The product of its (nonzero) digits is 2408448, while the sum is 52.

The spelling of 4027841268721 in words is "four trillion, twenty-seven billion, eight hundred forty-one million, two hundred sixty-eight thousand, seven hundred twenty-one".