677845667234 has 8 divisors (see below), whose sum is σ = 1016781135660. Its totient is φ = 338918622016.

The previous prime is 677845667209. The next prime is 677845667263. The reversal of 677845667234 is 432766548776.

It can be written as a sum of positive squares in 2 ways, for example, as 634850400625 + 42995266609 = 796775^2 + 207353^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×677845667234² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1900619 + ... + 2228910.

Almost surely, 2^677845667234 is an apocalyptic number.

677845667234 is a deficient number, since it is larger than the sum of its proper divisors (338935468426).

677845667234 is a wasteful number, since it uses less digits than its factorization.

677845667234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4211604.

The product of its digits is 284497920, while the sum is 65.

The spelling of 677845667234 in words is "six hundred seventy-seven billion, eight hundred forty-five million, six hundred sixty-seven thousand, two hundred thirty-four".