1189147980944 has 720 divisors, whose sum is σ = 3293489869824. Its totient is φ = 406065623040.

The previous prime is 1189147980919. The next prime is 1189147980949. The reversal of 1189147980944 is 4490897419811.

1189147980944 is digitally balanced in base 12, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1189147980944² (a number of 25 digits) contains 22 as substring.

1189147980944 is strictly pandigital in base 12.

It is not an unprimeable number, because it can be changed into a prime (1189147980949) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3873446039 + ... + 3873446345.

Almost surely, 2^{1189147980944} is an apocalyptic number.

1189147980944 is a gapful number since it is divisible by the number (14) 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 1189147980944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1646744934912).

1189147980944 is an abundant number, since it is smaller than the sum of its proper divisors (2104341888880).

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

1189147980944 is a wasteful number, since it uses less digits than its factorization.

1189147980944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 410 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 65.

The spelling of 1189147980944 in words is "one trillion, one hundred eighty-nine billion, one hundred forty-seven million, nine hundred eighty thousand, nine hundred forty-four".