678959812189080 has 192 divisors, whose sum is σ = 2322798860210400. Its totient is φ = 171523616808960.

The previous prime is 678959812189079. The next prime is 678959812189147. The reversal of 678959812189080 is 80981218959876.

678959812189080 is a `hidden beast` number, since 6 + 7 + 8 + 9 + 598 + 1 + 2 + 18 + 9 + 0 + 8 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 393787270 + ... + 395507690.

Almost surely, 2^{678959812189080} is an apocalyptic number.

678959812189080 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

678959812189080 is an abundant number, since it is smaller than the sum of its proper divisors (1643839048021320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678959812189080 is a wasteful number, since it uses less digits than its factorization.

678959812189080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1778154 (or 1778147 counting only the distinct ones).

The product of its (nonzero) digits is 1254113280, while the sum is 81.

The spelling of 678959812189080 in words is "six hundred seventy-eight trillion, nine hundred fifty-nine billion, eight hundred twelve million, one hundred eighty-nine thousand, eighty".