677455225871 has 2 divisors, whose sum is σ = 677455225872. Its totient is φ = 677455225870.

The previous prime is 677455225861. The next prime is 677455225883. The reversal of 677455225871 is 178522554776.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677455225871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 677455225871.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (677455225861) 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, 338727612935 + 338727612936.

It is an arithmetic number, because the mean of its divisors is an integer number (338727612936).

Almost surely, 2^677455225871 is an apocalyptic number.

677455225871 is a deficient number, since it is larger than the sum of its proper divisors (1).

677455225871 is an equidigital number, since it uses as much as digits as its factorization.

677455225871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32928000, while the sum is 59.

The spelling of 677455225871 in words is "six hundred seventy-seven billion, four hundred fifty-five million, two hundred twenty-five thousand, eight hundred seventy-one".