444415115420005 has 4 divisors (see below), whose sum is σ = 533298138504012. Its totient is φ = 355532092336000.

The previous prime is 444415115419981. The next prime is 444415115420117. The reversal of 444415115420005 is 500024511514444.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 155851204785444 + 288563910634561 = 12484038^2 + 16987169^2 .

It is a de Polignac number, because none of the positive numbers 2^k-444415115420005 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 444415115420005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44441511541996 + ... + 44441511542005.

It is an arithmetic number, because the mean of its divisors is an integer number (133324534626003).

Almost surely, 2^{444415115420005} is an apocalyptic number.

It is an amenable number.

444415115420005 is a deficient number, since it is larger than the sum of its proper divisors (88883023084007).

444415115420005 is an equidigital number, since it uses as much as digits as its factorization.

444415115420005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88883023084006.

The product of its (nonzero) digits is 256000, while the sum is 40.

Adding to 444415115420005 its reverse (500024511514444), we get a palindrome (944439626934449).

The spelling of 444415115420005 in words is "four hundred forty-four trillion, four hundred fifteen billion, one hundred fifteen million, four hundred twenty thousand, five".