1144440413886 has 288 divisors, whose sum is σ = 3159476876160. Its totient is φ = 272513808000.

The previous prime is 1144440413881. The next prime is 1144440413887. The reversal of 1144440413886 is 6883140444411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144440413881) 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, 59039916 + ... + 59059296.

It is an arithmetic number, because the mean of its divisors is an integer number (10970405820).

Almost surely, 2^{1144440413886} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144440413886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1579738438080).

1144440413886 is an abundant number, since it is smaller than the sum of its proper divisors (2015036462274).

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

1144440413886 is a wasteful number, since it uses less digits than its factorization.

1144440413886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19492 (or 19454 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 48.

The spelling of 1144440413886 in words is "one trillion, one hundred forty-four billion, four hundred forty million, four hundred thirteen thousand, eight hundred eighty-six".