677003727481 has 2 divisors, whose sum is σ = 677003727482. Its totient is φ = 677003727480.

The previous prime is 677003727473. The next prime is 677003727497. The reversal of 677003727481 is 184727300776.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 541535563881 + 135468163600 = 735891^2 + 368060^2 .

It is a cyclic number.

It is not a de Polignac number, because 677003727481 - 2³ = 677003727473 is a prime.

It is a super-2 number, since 2×677003727481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (677003727431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338501863740 + 338501863741.

It is an arithmetic number, because the mean of its divisors is an integer number (338501863741).

Almost surely, 2^677003727481 is an apocalyptic number.

It is an amenable number.

677003727481 is a deficient number, since it is larger than the sum of its proper divisors (1).

677003727481 is an equidigital number, since it uses as much as digits as its factorization.

677003727481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2765952, while the sum is 52.

The spelling of 677003727481 in words is "six hundred seventy-seven billion, three million, seven hundred twenty-seven thousand, four hundred eighty-one".