1996444331392 has 128 divisors (see below), whose sum is σ = 4567676443200. Its totient is φ = 851450265600.

The previous prime is 1996444331383. The next prime is 1996444331443. The reversal of 1996444331392 is 2931334446991.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160984392 + ... + 160996792.

Almost surely, 2^{1996444331392} 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 1996444331392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2283838221600).

1996444331392 is an abundant number, since it is smaller than the sum of its proper divisors (2571232111808).

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

1996444331392 is a wasteful number, since it uses less digits than its factorization.

1996444331392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284 (or 13272 counting only the distinct ones).

The product of its digits is 15116544, while the sum is 58.

The spelling of 1996444331392 in words is "one trillion, nine hundred ninety-six billion, four hundred forty-four million, three hundred thirty-one thousand, three hundred ninety-two".