994798478268 has 192 divisors, whose sum is σ = 2976074465280. Its totient is φ = 281485725696.

The previous prime is 994798478213. The next prime is 994798478327. The reversal of 994798478268 is 862874897499.

994798478268 is a `hidden beast` number, since 9 + 9 + 479 + 8 + 4 + 7 + 82 + 68 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 55389946 + ... + 55407902.

It is an arithmetic number, because the mean of its divisors is an integer number (15500387840).

Almost surely, 2^994798478268 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 994798478268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488037232640).

994798478268 is an abundant number, since it is smaller than the sum of its proper divisors (1981275987012).

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

994798478268 is a wasteful number, since it uses less digits than its factorization.

994798478268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18681 (or 18673 counting only the distinct ones).

The product of its digits is 3511517184, while the sum is 81.

The spelling of 994798478268 in words is "nine hundred ninety-four billion, seven hundred ninety-eight million, four hundred seventy-eight thousand, two hundred sixty-eight".