677142656 has 32 divisors (see below), whose sum is σ = 1350708480. Its totient is φ = 338141440.

The previous prime is 677142649. The next prime is 677142679. The reversal of 677142656 is 656241776.

It is a tau number, because it is divible by the number of its divisors (32).

Its product of digits (423360) is a multiple of the sum of its prime divisors (6720).

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, 113705 + ... + 119511.

It is an arithmetic number, because the mean of its divisors is an integer number (42209640).

Almost surely, 2^677142656 is an apocalyptic number.

It is an amenable number.

677142656 is a deficient number, since it is larger than the sum of its proper divisors (673565824).

677142656 is an equidigital number, since it uses as much as digits as its factorization.

677142656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6732 (or 6720 counting only the distinct ones).

The product of its digits is 423360, while the sum is 44.

The square root of 677142656 is about 26021.9648758506. The cubic root of 677142656 is about 878.1325135580.

The spelling of 677142656 in words is "six hundred seventy-seven million, one hundred forty-two thousand, six hundred fifty-six".