8275864381 has 2 divisors, whose sum is σ = 8275864382. Its totient is φ = 8275864380.

The previous prime is 8275864369. The next prime is 8275864417. The reversal of 8275864381 is 1834685728.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4741561881 + 3534302500 = 68859^2 + 59450^2 .

It is a cyclic number.

It is not a de Polignac number, because 8275864381 - 2¹¹ = 8275862333 is a prime.

It is a super-2 number, since 2×8275864381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8275864361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4137932190 + 4137932191.

It is an arithmetic number, because the mean of its divisors is an integer number (4137932191).

Almost surely, 2^8275864381 is an apocalyptic number.

It is an amenable number.

8275864381 is a deficient number, since it is larger than the sum of its proper divisors (1).

8275864381 is an equidigital number, since it uses as much as digits as its factorization.

8275864381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2580480, while the sum is 52.

The square root of 8275864381 is about 90971.7779368965. Note that the first 3 decimals coincide. The cubic root of 8275864381 is about 2022.7294068976.

The spelling of 8275864381 in words is "eight billion, two hundred seventy-five million, eight hundred sixty-four thousand, three hundred eighty-one".