677238043012 has 24 divisors (see below), whose sum is σ = 1186031167776. Its totient is φ = 338372082048.

The previous prime is 677238043003. The next prime is 677238043039. The reversal of 677238043012 is 210340832776.

It is a self number, because there is not a number n which added to its sum of digits gives 677238043012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49962828 + ... + 49976380.

It is an arithmetic number, because the mean of its divisors is an integer number (49417965324).

Almost surely, 2^677238043012 is an apocalyptic number.

It is an amenable number.

677238043012 is a deficient number, since it is larger than the sum of its proper divisors (508793124764).

677238043012 is a wasteful number, since it uses less digits than its factorization.

677238043012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21747 (or 21745 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

Adding to 677238043012 its reverse (210340832776), we get a palindrome (887578875788).

The spelling of 677238043012 in words is "six hundred seventy-seven billion, two hundred thirty-eight million, forty-three thousand, twelve".