677845164646 has 24 divisors (see below), whose sum is σ = 1101051583560. Its totient is φ = 312836112576.

The previous prime is 677845164629. The next prime is 677845164649. The reversal of 677845164646 is 646461548776.

677845164646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677845164649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9483490 + ... + 9554698.

It is an arithmetic number, because the mean of its divisors is an integer number (45877149315).

Almost surely, 2^677845164646 is an apocalyptic number.

677845164646 is a deficient number, since it is larger than the sum of its proper divisors (423206418914).

677845164646 is a wasteful number, since it uses less digits than its factorization.

677845164646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99400 (or 99387 counting only the distinct ones).

The product of its digits is 162570240, while the sum is 64.

The spelling of 677845164646 in words is "six hundred seventy-seven billion, eight hundred forty-five million, one hundred sixty-four thousand, six hundred forty-six".