1089798484992 has 132 divisors (see below), whose sum is σ = 3378949165440. Its totient is φ = 311370952704.

The previous prime is 1089798484897. The next prime is 1089798485011. The reversal of 1089798484992 is 2994848979801.

It is a Smith number, since the sum of its digits (78) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3469392 + ... + 3770447.

Almost surely, 2^{1089798484992} is an apocalyptic number.

1089798484992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1089798484992 is an abundant number, since it is smaller than the sum of its proper divisors (2289150680448).

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

1089798484992 is an equidigital number, since it uses as much as digits as its factorization.

1089798484992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7239876 (or 7239851 counting only the distinct ones).

The product of its (nonzero) digits is 752467968, while the sum is 78.

The spelling of 1089798484992 in words is "one trillion, eighty-nine billion, seven hundred ninety-eight million, four hundred eighty-four thousand, nine hundred ninety-two".