4271891329 has 2 divisors, whose sum is σ = 4271891330. Its totient is φ = 4271891328.

The previous prime is 4271891251. The next prime is 4271891333. The reversal of 4271891329 is 9231981724.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4154060304 + 117831025 = 64452^2 + 10855^2 .

It is a cyclic number.

It is not a de Polignac number, because 4271891329 - 2²³ = 4263502721 is a prime.

It is not a weakly prime, because it can be changed into another prime (4271891369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135945664 + 2135945665.

It is an arithmetic number, because the mean of its divisors is an integer number (2135945665).

Almost surely, 2^4271891329 is an apocalyptic number.

It is an amenable number.

4271891329 is a deficient number, since it is larger than the sum of its proper divisors (1).

4271891329 is an equidigital number, since it uses as much as digits as its factorization.

4271891329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The square root of 4271891329 is about 65359.7072285365. The cubic root of 4271891329 is about 1622.5822923544.

The spelling of 4271891329 in words is "four billion, two hundred seventy-one million, eight hundred ninety-one thousand, three hundred twenty-nine".