679504381261 has 8 divisors (see below), whose sum is σ = 684094118400. Its totient is φ = 674915035152.

The previous prime is 679504381247. The next prime is 679504381289. The reversal of 679504381261 is 162183405976.

679504381261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 679504381261 - 2⁹ = 679504380749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 679504381199 and 679504381208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679504381961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3954216 + ... + 4122478.

It is an arithmetic number, because the mean of its divisors is an integer number (85511764800).

It is a 1-persistent number, because it is pandigital, but 2⋅679504381261 = 1359008762522 is not.

Almost surely, 2^679504381261 is an apocalyptic number.

It is an amenable number.

679504381261 is a deficient number, since it is larger than the sum of its proper divisors (4589737139).

679504381261 is a wasteful number, since it uses less digits than its factorization.

679504381261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195515.

The product of its (nonzero) digits is 2177280, while the sum is 52.

The spelling of 679504381261 in words is "six hundred seventy-nine billion, five hundred four million, three hundred eighty-one thousand, two hundred sixty-one".