544445324431401 has 4 divisors (see below), whose sum is σ = 725927099241872. Its totient is φ = 362963549620932.

The previous prime is 544445324431367. The next prime is 544445324431501. The reversal of 544445324431401 is 104134423544445.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 544445324431401 - 2²² = 544445320237097 is a prime.

It is a super-2 number, since 2×544445324431401² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544445324431501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90740887405231 + ... + 90740887405236.

It is an arithmetic number, because the mean of its divisors is an integer number (181481774810468).

Almost surely, 2^{544445324431401} is an apocalyptic number.

It is an amenable number.

544445324431401 is a deficient number, since it is larger than the sum of its proper divisors (181481774810471).

544445324431401 is a wasteful number, since it uses less digits than its factorization.

544445324431401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181481774810470.

The product of its (nonzero) digits is 7372800, while the sum is 48.

Adding to 544445324431401 its reverse (104134423544445), we get a palindrome (648579747975846).

The spelling of 544445324431401 in words is "five hundred forty-four trillion, four hundred forty-five billion, three hundred twenty-four million, four hundred thirty-one thousand, four hundred one".