674066565481 has 2 divisors, whose sum is σ = 674066565482. Its totient is φ = 674066565480.

The previous prime is 674066565457. The next prime is 674066565503. The reversal of 674066565481 is 184565660476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380103075625 + 293963489856 = 616525^2 + 542184^2 .

It is a cyclic number.

It is not a de Polignac number, because 674066565481 - 2⁵ = 674066565449 is a prime.

It is a super-2 number, since 2×674066565481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (674066565421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337033282740 + 337033282741.

It is an arithmetic number, because the mean of its divisors is an integer number (337033282741).

Almost surely, 2^674066565481 is an apocalyptic number.

It is an amenable number.

674066565481 is a deficient number, since it is larger than the sum of its proper divisors (1).

674066565481 is an equidigital number, since it uses as much as digits as its factorization.

674066565481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29030400, while the sum is 58.

The spelling of 674066565481 in words is "six hundred seventy-four billion, sixty-six million, five hundred sixty-five thousand, four hundred eighty-one".