680978424879086 has 8 divisors (see below), whose sum is σ = 1021469572779480. Its totient is φ = 340488567285928.

The previous prime is 680978424879083. The next prime is 680978424879121.

680978424879086 is nontrivially palindromic in base 10.

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

It is a junction number, because it is equal to n+sod(n) for n = 680978424878989 and 680978424879007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680978424879083) 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, 321256316 + ... + 323369103.

It is an arithmetic number, because the mean of its divisors is an integer number (127683696597435).

Almost surely, 2^{680978424879086} is an apocalyptic number.

680978424879086 is a deficient number, since it is larger than the sum of its proper divisors (340491147900394).

680978424879086 is a wasteful number, since it uses less digits than its factorization.

680978424879086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645153618.

The product of its (nonzero) digits is 18728091648, while the sum is 86.

The spelling of 680978424879086 in words is "six hundred eighty trillion, nine hundred seventy-eight billion, four hundred twenty-four million, eight hundred seventy-nine thousand, eighty-six".