8465740181 has 2 divisors, whose sum is σ = 8465740182. Its totient is φ = 8465740180.

The previous prime is 8465740163. The next prime is 8465740211. The reversal of 8465740181 is 1810475648.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8465656081 + 84100 = 92009^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 8465740181 - 2²⁶ = 8398631317 is a prime.

It is a super-2 number, since 2×8465740181² (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 (8465746181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4232870090 + 4232870091.

It is an arithmetic number, because the mean of its divisors is an integer number (4232870091).

Almost surely, 2^8465740181 is an apocalyptic number.

It is an amenable number.

8465740181 is a deficient number, since it is larger than the sum of its proper divisors (1).

8465740181 is an equidigital number, since it uses as much as digits as its factorization.

8465740181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 8465740181 is about 92009.4570193738. The cubic root of 8465740181 is about 2038.0819615342.

The spelling of 8465740181 in words is "eight billion, four hundred sixty-five million, seven hundred forty thousand, one hundred eighty-one".