679239939253 has 8 divisors (see below), whose sum is σ = 714996979200. Its totient is φ = 643483656288.

The previous prime is 679239939199. The next prime is 679239939269. The reversal of 679239939253 is 352939932976.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-679239939253 is a prime.

It is a super-2 number, since 2×679239939253² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679239939293) 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 7 ways as a sum of consecutive naturals, for example, 3348825 + ... + 3545857.

It is an arithmetic number, because the mean of its divisors is an integer number (89374622400).

Almost surely, 2^679239939253 is an apocalyptic number.

It is an amenable number.

679239939253 is a deficient number, since it is larger than the sum of its proper divisors (35757039947).

679239939253 is a wasteful number, since it uses less digits than its factorization.

679239939253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378491.

The product of its digits is 148803480, while the sum is 67.

It can be divided in two parts, 679 and 239939253, that added together give a palindrome (239939932).

The spelling of 679239939253 in words is "six hundred seventy-nine billion, two hundred thirty-nine million, nine hundred thirty-nine thousand, two hundred fifty-three".