677743434041 has 4 divisors (see below), whose sum is σ = 679044285684. Its totient is φ = 676442582400.

The previous prime is 677743434013. The next prime is 677743434079. The reversal of 677743434041 is 140434347776.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 377943382441 + 299800051600 = 614771^2 + 547540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-677743434041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (677743434541) by changing a digit.

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, 650425040 + ... + 650426081.

It is an arithmetic number, because the mean of its divisors is an integer number (169761071421).

Almost surely, 2^677743434041 is an apocalyptic number.

It is an amenable number.

677743434041 is a deficient number, since it is larger than the sum of its proper divisors (1300851643).

677743434041 is a wasteful number, since it uses less digits than its factorization.

677743434041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1300851642.

The product of its (nonzero) digits is 4741632, while the sum is 50.

The spelling of 677743434041 in words is "six hundred seventy-seven billion, seven hundred forty-three million, four hundred thirty-four thousand, forty-one".