1996289619768 has 128 divisors (see below), whose sum is σ = 5624610969600. Its totient is φ = 655910640000.

The previous prime is 1996289619767. The next prime is 1996289619781. The reversal of 1996289619768 is 8679169826991.

1996289619768 is a `hidden beast` number, since 1 + 9 + 96 + 289 + 6 + 197 + 68 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1996289619767) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84351505 + ... + 84375167.

It is an arithmetic number, because the mean of its divisors is an integer number (43942273200).

Almost surely, 2^{1996289619768} is an apocalyptic number.

1996289619768 is a gapful number since it is divisible by the number (18) 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 1996289619768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2812305484800).

1996289619768 is an abundant number, since it is smaller than the sum of its proper divisors (3628321349832).

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

1996289619768 is a wasteful number, since it uses less digits than its factorization.

1996289619768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29250 (or 29240 counting only the distinct ones).

The product of its digits is 1269789696, while the sum is 81.

The spelling of 1996289619768 in words is "one trillion, nine hundred ninety-six billion, two hundred eighty-nine million, six hundred nineteen thousand, seven hundred sixty-eight".