677354222213 has 4 divisors (see below), whose sum is σ = 678684977580. Its totient is φ = 676023466848.

The previous prime is 677354222203. The next prime is 677354222297. The reversal of 677354222213 is 312222453776.

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 297087133249 + 380267088964 = 545057^2 + 616658^2 .

It is a cyclic number.

It is not a de Polignac number, because 677354222213 - 2¹⁸ = 677353960069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (677354222203) 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, 665376920 + ... + 665377937.

It is an arithmetic number, because the mean of its divisors is an integer number (169671244395).

Almost surely, 2^677354222213 is an apocalyptic number.

It is an amenable number.

677354222213 is a deficient number, since it is larger than the sum of its proper divisors (1330755367).

677354222213 is a wasteful number, since it uses less digits than its factorization.

677354222213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330755366.

The product of its digits is 846720, while the sum is 44.

Adding to 677354222213 its reverse (312222453776), we get a palindrome (989576675989).

The spelling of 677354222213 in words is "six hundred seventy-seven billion, three hundred fifty-four million, two hundred twenty-two thousand, two hundred thirteen".