677685378212 has 12 divisors (see below), whose sum is σ = 1224205844736. Its totient is φ = 327912279720.

The previous prime is 677685378199. The next prime is 677685378283. The reversal of 677685378212 is 212873586776.

It is a Harshad number since it is a multiple of its sum of digits (62).

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 in 3 ways as a sum of consecutive naturals, for example, 2732602208 + ... + 2732602455.

It is an arithmetic number, because the mean of its divisors is an integer number (102017153728).

Almost surely, 2^677685378212 is an apocalyptic number.

677685378212 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

677685378212 is a deficient number, since it is larger than the sum of its proper divisors (546520466524).

677685378212 is a wasteful number, since it uses less digits than its factorization.

677685378212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465204698 (or 5465204696 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 62.

The spelling of 677685378212 in words is "six hundred seventy-seven billion, six hundred eighty-five million, three hundred seventy-eight thousand, two hundred twelve".