677681598980674 has 4 divisors (see below), whose sum is σ = 1016522398471014. Its totient is φ = 338840799490336.

The previous prime is 677681598980647. The next prime is 677681598980707. The reversal of 677681598980674 is 476089895186776.

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

It can be written as a sum of positive squares in only one way, i.e., 499482941283225 + 178198657697449 = 22349115^2 + 13349107^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169420399745167 + ... + 169420399745170.

Almost surely, 2^{677681598980674} is an apocalyptic number.

677681598980674 is a deficient number, since it is larger than the sum of its proper divisors (338840799490340).

677681598980674 is a wasteful number, since it uses less digits than its factorization.

677681598980674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338840799490339.

The product of its (nonzero) digits is 61451550720, while the sum is 91.

The spelling of 677681598980674 in words is "six hundred seventy-seven trillion, six hundred eighty-one billion, five hundred ninety-eight million, nine hundred eighty thousand, six hundred seventy-four".