4271825981 has 2 divisors, whose sum is σ = 4271825982. Its totient is φ = 4271825980.

The previous prime is 4271825953. The next prime is 4271825983. The reversal of 4271825981 is 1895281724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3090804025 + 1181021956 = 55595^2 + 34366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4271825981 is a prime.

It is a super-2 number, since 2×4271825981² = 36496994423893224722, which contains 22 as substring.

Together with 4271825983, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4271825983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2135912990 + 2135912991.

It is an arithmetic number, because the mean of its divisors is an integer number (2135912991).

Almost surely, 2^4271825981 is an apocalyptic number.

It is an amenable number.

4271825981 is a deficient number, since it is larger than the sum of its proper divisors (1).

4271825981 is an equidigital number, since it uses as much as digits as its factorization.

4271825981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 47.

The square root of 4271825981 is about 65359.2073161846. The cubic root of 4271825981 is about 1622.5740186539.

The spelling of 4271825981 in words is "four billion, two hundred seventy-one million, eight hundred twenty-five thousand, nine hundred eighty-one".