677455145411813 has 4 divisors (see below), whose sum is σ = 677460925419180. Its totient is φ = 677449365404448.

The previous prime is 677455145411797. The next prime is 677455145411827. The reversal of 677455145411813 is 318114541554776.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 158619364758724 + 518835780653089 = 12594418^2 + 22777967^2 .

It is a cyclic number.

It is not a de Polignac number, because 677455145411813 - 2⁴ = 677455145411797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677455145419813) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2889827870 + ... + 2890062287.

It is an arithmetic number, because the mean of its divisors is an integer number (169365231354795).

Almost surely, 2^{677455145411813} is an apocalyptic number.

It is an amenable number.

677455145411813 is a deficient number, since it is larger than the sum of its proper divisors (5780007367).

677455145411813 is a wasteful number, since it uses less digits than its factorization.

677455145411813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5780007366.

The product of its digits is 56448000, while the sum is 62.

The spelling of 677455145411813 in words is "six hundred seventy-seven trillion, four hundred fifty-five billion, one hundred forty-five million, four hundred eleven thousand, eight hundred thirteen".