1441781599644 has 36 divisors (see below), whose sum is σ = 3858886047744. Its totient is φ = 452323638912.

The previous prime is 1441781599633. The next prime is 1441781599697. The reversal of 1441781599644 is 4469951871441.

1441781599644 is a `hidden beast` number, since 1 + 4 + 417 + 8 + 159 + 9 + 64 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1177925532 + ... + 1177926755.

It is an arithmetic number, because the mean of its divisors is an integer number (107191279104).

Almost surely, 2^{1441781599644} is an apocalyptic number.

It is an amenable number.

1441781599644 is an abundant number, since it is smaller than the sum of its proper divisors (2417104448100).

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

1441781599644 is a wasteful number, since it uses less digits than its factorization.

1441781599644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2355852314 (or 2355852309 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 1441781599644 in words is "one trillion, four hundred forty-one billion, seven hundred eighty-one million, five hundred ninety-nine thousand, six hundred forty-four".