677784937836 has 12 divisors (see below), whose sum is σ = 1581498188312. Its totient is φ = 225928312608.

The previous prime is 677784937741. The next prime is 677784937867. The reversal of 677784937836 is 638739487776.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28241039065 + ... + 28241039088.

Almost surely, 2^677784937836 is an apocalyptic number.

It is an amenable number.

677784937836 is an abundant number, since it is smaller than the sum of its proper divisors (903713250476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677784937836 is a wasteful number, since it uses less digits than its factorization.

677784937836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56482078160 (or 56482078158 counting only the distinct ones).

The product of its digits is 1792336896, while the sum is 75.

The spelling of 677784937836 in words is "six hundred seventy-seven billion, seven hundred eighty-four million, nine hundred thirty-seven thousand, eight hundred thirty-six".