4271644121 has 4 divisors (see below), whose sum is σ = 4272417552. Its totient is φ = 4270870692.

The previous prime is 4271644109. The next prime is 4271644141. The reversal of 4271644121 is 1214461724.

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 4271644121 - 2⁶ = 4271644057 is a prime.

It is a super-3 number, since 3×4271644121³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4271644141) 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, 378371 + ... + 389496.

It is an arithmetic number, because the mean of its divisors is an integer number (1068104388).

Almost surely, 2^4271644121 is an apocalyptic number.

It is an amenable number.

4271644121 is a deficient number, since it is larger than the sum of its proper divisors (773431).

4271644121 is an equidigital number, since it uses as much as digits as its factorization.

4271644121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773430.

The product of its digits is 10752, while the sum is 32.

The square root of 4271644121 is about 65357.8160666343. The cubic root of 4271644121 is about 1622.5509929423.

The spelling of 4271644121 in words is "four billion, two hundred seventy-one million, six hundred forty-four thousand, one hundred twenty-one".