676685178986 has 4 divisors (see below), whose sum is σ = 1015027768482. Its totient is φ = 338342589492.

The previous prime is 676685178907. The next prime is 676685179007. The reversal of 676685178986 is 689871586676.

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., 432667950625 + 244017228361 = 657775^2 + 493981^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169171294745 + ... + 169171294748.

Almost surely, 2^676685178986 is an apocalyptic number.

676685178986 is a deficient number, since it is larger than the sum of its proper divisors (338342589496).

676685178986 is a wasteful number, since it uses less digits than its factorization.

676685178986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338342589495.

The product of its digits is 1463132160, while the sum is 77.

The spelling of 676685178986 in words is "six hundred seventy-six billion, six hundred eighty-five million, one hundred seventy-eight thousand, nine hundred eighty-six".