8265381001 has 2 divisors, whose sum is σ = 8265381002. Its totient is φ = 8265381000.

The previous prime is 8265380999. The next prime is 8265381071. The reversal of 8265381001 is 1001835628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8199121401 + 66259600 = 90549^2 + 8140^2 .

It is a cyclic number.

It is not a de Polignac number, because 8265381001 - 2¹ = 8265380999 is a prime.

Together with 8265380999, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8265381071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4132690500 + 4132690501.

It is an arithmetic number, because the mean of its divisors is an integer number (4132690501).

Almost surely, 2^8265381001 is an apocalyptic number.

It is an amenable number.

8265381001 is a deficient number, since it is larger than the sum of its proper divisors (1).

8265381001 is an equidigital number, since it uses as much as digits as its factorization.

8265381001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 8265381001 is about 90914.1408197867. The cubic root of 8265381001 is about 2021.8749543149.

The spelling of 8265381001 in words is "eight billion, two hundred sixty-five million, three hundred eighty-one thousand, one".