1444356921343 has 18 divisors (see below), whose sum is σ = 1705775900472. Its totient is φ = 1198002318480.

The previous prime is 1444356921307. The next prime is 1444356921347. The reversal of 1444356921343 is 3431296534441.

It is a happy number.

It is not a de Polignac number, because 1444356921343 - 2¹³ = 1444356913151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444356921347) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 98563405 + ... + 98578057.

It is an arithmetic number, because the mean of its divisors is an integer number (94765327804).

Almost surely, 2^{1444356921343} is an apocalyptic number.

1444356921343 is a deficient number, since it is larger than the sum of its proper divisors (261418979129).

1444356921343 is an frugal number, since it uses more digits than its factorization.

1444356921343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29375 (or 14691 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 49.

The spelling of 1444356921343 in words is "one trillion, four hundred forty-four billion, three hundred fifty-six million, nine hundred twenty-one thousand, three hundred forty-three".