1992491344992 has 24 divisors (see below), whose sum is σ = 5230289780856. Its totient is φ = 664163781632.

The previous prime is 1992491344981. The next prime is 1992491344993. The reversal of 1992491344992 is 2994431942991.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1992491344993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10377558993 + ... + 10377559184.

It is an arithmetic number, because the mean of its divisors is an integer number (217928740869).

Almost surely, 2^{1992491344992} is an apocalyptic number.

1992491344992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1992491344992 is an abundant number, since it is smaller than the sum of its proper divisors (3237798435864).

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

1992491344992 is a wasteful number, since it uses less digits than its factorization.

1992491344992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20755118190 (or 20755118182 counting only the distinct ones).

The product of its digits is 45349632, while the sum is 66.

The spelling of 1992491344992 in words is "one trillion, nine hundred ninety-two billion, four hundred ninety-one million, three hundred forty-four thousand, nine hundred ninety-two".