444340134321431 has 8 divisors (see below), whose sum is σ = 449384191542528. Its totient is φ = 439321109643000.

The previous prime is 444340134321403. The next prime is 444340134321491. The reversal of 444340134321431 is 134123431043444.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 444340134321431 - 2²⁶ = 444340067212567 is a prime.

It is a super-2 number, since 2×444340134321431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444340134321491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6258099965 + ... + 6258170966.

It is an arithmetic number, because the mean of its divisors is an integer number (56173023942816).

Almost surely, 2^{444340134321431} is an apocalyptic number.

444340134321431 is a deficient number, since it is larger than the sum of its proper divisors (5044057221097).

444340134321431 is a wasteful number, since it uses less digits than its factorization.

444340134321431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12516271333.

The product of its (nonzero) digits is 663552, while the sum is 41.

Adding to 444340134321431 its reverse (134123431043444), we get a palindrome (578463565364875).

The spelling of 444340134321431 in words is "four hundred forty-four trillion, three hundred forty billion, one hundred thirty-four million, three hundred twenty-one thousand, four hundred thirty-one".