677743946142 has 8 divisors (see below), whose sum is σ = 1355487892296. Its totient is φ = 225914648712.

The previous prime is 677743946141. The next prime is 677743946149. The reversal of 677743946142 is 241649347776.

It is a happy number.

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

677743946142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677743946141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56478662173 + ... + 56478662184.

It is an arithmetic number, because the mean of its divisors is an integer number (169435986537).

Almost surely, 2^677743946142 is an apocalyptic number.

677743946142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

677743946142 is a wasteful number, since it uses less digits than its factorization.

677743946142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112957324362.

The product of its digits is 42674688, while the sum is 60.

The spelling of 677743946142 in words is "six hundred seventy-seven billion, seven hundred forty-three million, nine hundred forty-six thousand, one hundred forty-two".