677125664953 has 2 divisors, whose sum is σ = 677125664954. Its totient is φ = 677125664952.

The previous prime is 677125664909. The next prime is 677125664981. The reversal of 677125664953 is 359466521776.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 639475307584 + 37650357369 = 799672^2 + 194037^2 .

It is a cyclic number.

It is not a de Polignac number, because 677125664953 - 2¹⁷ = 677125533881 is a prime.

It is a super-2 number, since 2×677125664953² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 677125664891 and 677125664900.

It is not a weakly prime, because it can be changed into another prime (677125668953) 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, 338562832476 + 338562832477.

It is an arithmetic number, because the mean of its divisors is an integer number (338562832477).

Almost surely, 2^677125664953 is an apocalyptic number.

It is an amenable number.

677125664953 is a deficient number, since it is larger than the sum of its proper divisors (1).

677125664953 is an equidigital number, since it uses as much as digits as its factorization.

677125664953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57153600, while the sum is 61.

The spelling of 677125664953 in words is "six hundred seventy-seven billion, one hundred twenty-five million, six hundred sixty-four thousand, nine hundred fifty-three".