677228192019194 has 4 divisors (see below), whose sum is σ = 1015842288028794. Its totient is φ = 338614096009596.

The previous prime is 677228192019193. The next prime is 677228192019209. The reversal of 677228192019194 is 491910291822776.

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., 676423606341025 + 804585678169 = 26008145^2 + 896987^2 .

It is not an unprimeable number, because it can be changed into a prime (677228192019193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169307048004797 + ... + 169307048004800.

Almost surely, 2^{677228192019194} is an apocalyptic number.

677228192019194 is a deficient number, since it is larger than the sum of its proper divisors (338614096009600).

677228192019194 is a wasteful number, since it uses less digits than its factorization.

677228192019194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338614096009599.

The product of its (nonzero) digits is 54867456, while the sum is 68.

The spelling of 677228192019194 in words is "six hundred seventy-seven trillion, two hundred twenty-eight billion, one hundred ninety-two million, nineteen thousand, one hundred ninety-four".