1994584847616 has 432 divisors, whose sum is σ = 6202771153488. Its totient is φ = 614124748800.

The previous prime is 1994584847611. The next prime is 1994584847641. The reversal of 1994584847616 is 6167484854991.

1994584847616 is a `hidden beast` number, since 1 + 9 + 94 + 58 + 4 + 8 + 476 + 16 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 697719407616 + 1296865440000 = 835296^2 + 1138800^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994584847611) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1818217180 + ... + 1818218276.

It is an arithmetic number, because the mean of its divisors is an integer number (14358266559).

Almost surely, 2^{1994584847616} is an apocalyptic number.

1994584847616 is a gapful number since it is divisible by the number (16) 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 1994584847616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3101385576744).

1994584847616 is an abundant number, since it is smaller than the sum of its proper divisors (4208186305872).

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

1994584847616 is a wasteful number, since it uses less digits than its factorization.

1994584847616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1958 (or 1941 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 72.

The spelling of 1994584847616 in words is "one trillion, nine hundred ninety-four billion, five hundred eighty-four million, eight hundred forty-seven thousand, six hundred sixteen".