1194566491840 has 28 divisors (see below), whose sum is σ = 2844561459456. Its totient is φ = 477826596608.

The previous prime is 1194566491787. The next prime is 1194566491849. The reversal of 1194566491840 is 481946654911.

It is a super-3 number, since 3×1194566491840³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1194566491849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1866509824 + ... + 1866510463.

Almost surely, 2^{1194566491840} is an apocalyptic number.

1194566491840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1194566491840 is an abundant number, since it is smaller than the sum of its proper divisors (1649994967616).

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

1194566491840 is an equidigital number, since it uses as much as digits as its factorization.

1194566491840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3733020304 (or 3733020294 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 58.

The spelling of 1194566491840 in words is "one trillion, one hundred ninety-four billion, five hundred sixty-six million, four hundred ninety-one thousand, eight hundred forty".