677239318841 has 4 divisors (see below), whose sum is σ = 678369936000. Its totient is φ = 676108701684.

The previous prime is 677239318837. The next prime is 677239318859. The reversal of 677239318841 is 148813932776.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 677239318841 - 2² = 677239318837 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677239318831) 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, 565307681 + ... + 565308878.

It is an arithmetic number, because the mean of its divisors is an integer number (169592484000).

Almost surely, 2^677239318841 is an apocalyptic number.

It is an amenable number.

677239318841 is a deficient number, since it is larger than the sum of its proper divisors (1130617159).

677239318841 is a wasteful number, since it uses less digits than its factorization.

677239318841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130617158.

The product of its digits is 12192768, while the sum is 59.

The spelling of 677239318841 in words is "six hundred seventy-seven billion, two hundred thirty-nine million, three hundred eighteen thousand, eight hundred forty-one".