677388495213 has 6 divisors (see below), whose sum is σ = 978450048654. Its totient is φ = 451592330136.

The previous prime is 677388495191. The next prime is 677388495257. The reversal of 677388495213 is 312594883776.

677388495213 is a `hidden beast` number, since 6 + 77 + 38 + 8 + 4 + 9 + 521 + 3 = 666.

677388495213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 669930791049 + 7457704164 = 818493^2 + 86358^2 .

It is not a de Polignac number, because 677388495213 - 2³² = 673093527917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677388495613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37632694170 + ... + 37632694187.

It is an arithmetic number, because the mean of its divisors is an integer number (163075008109).

Almost surely, 2^677388495213 is an apocalyptic number.

It is an amenable number.

677388495213 is a deficient number, since it is larger than the sum of its proper divisors (301061553441).

677388495213 is a wasteful number, since it uses less digits than its factorization.

677388495213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75265388363 (or 75265388360 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 63.

The spelling of 677388495213 in words is "six hundred seventy-seven billion, three hundred eighty-eight million, four hundred ninety-five thousand, two hundred thirteen".