1994456032608 has 384 divisors, whose sum is σ = 5989819207680. Its totient is φ = 576618577920.

The previous prime is 1994456032607. The next prime is 1994456032631. The reversal of 1994456032608 is 8062306544991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994456032601) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 687031285 + ... + 687034187.

It is an arithmetic number, because the mean of its divisors is an integer number (15598487520).

Almost surely, 2^{1994456032608} 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 1994456032608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2994909603840).

1994456032608 is an abundant number, since it is smaller than the sum of its proper divisors (3995363175072).

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

1994456032608 is a wasteful number, since it uses less digits than its factorization.

1994456032608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3462 (or 3454 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 57.

The spelling of 1994456032608 in words is "one trillion, nine hundred ninety-four billion, four hundred fifty-six million, thirty-two thousand, six hundred eight".