680793975792 has 240 divisors, whose sum is σ = 2274090832800. Its totient is φ = 194434007040.

The previous prime is 680793975787. The next prime is 680793975811. The reversal of 680793975792 is 297579397086.

680793975792 is a `hidden beast` number, since 6 + 80 + 79 + 397 + 5 + 7 + 92 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 680793975792.

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, 70463442 + ... + 70473102.

It is an arithmetic number, because the mean of its divisors is an integer number (9475378470).

Almost surely, 2^680793975792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680793975792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1137045416400).

680793975792 is an abundant number, since it is smaller than the sum of its proper divisors (1593296857008).

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

680793975792 is a wasteful number, since it uses less digits than its factorization.

680793975792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13021 (or 13002 counting only the distinct ones).

The product of its (nonzero) digits is 360067680, while the sum is 72.

The spelling of 680793975792 in words is "six hundred eighty billion, seven hundred ninety-three million, nine hundred seventy-five thousand, seven hundred ninety-two".