994324999680 has 1200 divisors, whose sum is σ = 3871001391840. Its totient is φ = 243727958016.

The previous prime is 994324999669. The next prime is 994324999687. The reversal of 994324999680 is 86999423499.

994324999680 is a `hidden beast` number, since 9 + 9 + 43 + 2 + 499 + 96 + 8 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 994324999599 and 994324999608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994324999687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2769707341 + ... + 2769707699.

Almost surely, 2^994324999680 is an apocalyptic number.

994324999680 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 994324999680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1935500695920).

994324999680 is an abundant number, since it is smaller than the sum of its proper divisors (2876676392160).

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

994324999680 is a wasteful number, since it uses less digits than its factorization.

994324999680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469 (or 425 counting only the distinct ones).

The product of its (nonzero) digits is 272097792, while the sum is 72.

The spelling of 994324999680 in words is "nine hundred ninety-four billion, three hundred twenty-four million, nine hundred ninety-nine thousand, six hundred eighty".