605375527681 has 2 divisors, whose sum is σ = 605375527682. Its totient is φ = 605375527680.

The previous prime is 605375527619. The next prime is 605375527697. The reversal of 605375527681 is 186725573506.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 551729556225 + 53645971456 = 742785^2 + 231616^2 .

It is a cyclic number.

It is not a de Polignac number, because 605375527681 - 2³⁵ = 571015789313 is a prime.

It is a super-2 number, since 2×605375527681² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (605375524681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302687763840 + 302687763841.

It is an arithmetic number, because the mean of its divisors is an integer number (302687763841).

Almost surely, 2^605375527681 is an apocalyptic number.

It is an amenable number.

605375527681 is a deficient number, since it is larger than the sum of its proper divisors (1).

605375527681 is an equidigital number, since it uses as much as digits as its factorization.

605375527681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584000, while the sum is 55.

The spelling of 605375527681 in words is "six hundred five billion, three hundred seventy-five million, five hundred twenty-seven thousand, six hundred eighty-one".