679113516831 has 4 divisors (see below), whose sum is σ = 905484689112. Its totient is φ = 452742344552.

The previous prime is 679113516821. The next prime is 679113516839. The reversal of 679113516831 is 138615311976.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 679113516831 - 2¹⁷ = 679113385759 is a prime.

It is a super-2 number, since 2×679113516831² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679113516839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113185586136 + ... + 113185586141.

It is an arithmetic number, because the mean of its divisors is an integer number (226371172278).

Almost surely, 2^679113516831 is an apocalyptic number.

679113516831 is a deficient number, since it is larger than the sum of its proper divisors (226371172281).

679113516831 is a wasteful number, since it uses less digits than its factorization.

679113516831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226371172280.

The product of its digits is 816480, while the sum is 51.

The spelling of 679113516831 in words is "six hundred seventy-nine billion, one hundred thirteen million, five hundred sixteen thousand, eight hundred thirty-one".