4271891271 has 4 divisors (see below), whose sum is σ = 5695855032. Its totient is φ = 2847927512.

The previous prime is 4271891251. The next prime is 4271891329. The reversal of 4271891271 is 1721981724.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4271891271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4271891231) 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, 711981876 + ... + 711981881.

It is an arithmetic number, because the mean of its divisors is an integer number (1423963758).

Almost surely, 2^4271891271 is an apocalyptic number.

4271891271 is a deficient number, since it is larger than the sum of its proper divisors (1423963761).

4271891271 is a wasteful number, since it uses less digits than its factorization.

4271891271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1423963760.

The product of its digits is 56448, while the sum is 42.

The square root of 4271891271 is about 65359.7067848380. The cubic root of 4271891271 is about 1622.5822850110.

The spelling of 4271891271 in words is "four billion, two hundred seventy-one million, eight hundred ninety-one thousand, two hundred seventy-one".