994086572544 has 480 divisors, whose sum is σ = 3265196014080. Its totient is φ = 288838877184.

The previous prime is 994086572497. The next prime is 994086572551. The reversal of 994086572544 is 445275680499.

994086572544 is a `hidden beast` number, since 9 + 9 + 4 + 0 + 8 + 6 + 572 + 54 + 4 = 666.

It is a super-2 number, since 2×994086572544² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 108841002 + ... + 108850134.

It is an arithmetic number, because the mean of its divisors is an integer number (6802491696).

Almost surely, 2^994086572544 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 994086572544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1632598007040).

994086572544 is an abundant number, since it is smaller than the sum of its proper divisors (2271109441536).

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

994086572544 is a wasteful number, since it uses less digits than its factorization.

994086572544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9272 (or 9253 counting only the distinct ones).

The product of its (nonzero) digits is 87091200, while the sum is 63.

The spelling of 994086572544 in words is "nine hundred ninety-four billion, eighty-six million, five hundred seventy-two thousand, five hundred forty-four".