444454155111 has 4 divisors (see below), whose sum is σ = 592605540152. Its totient is φ = 296302770072.

The previous prime is 444454155091. The next prime is 444454155113. The reversal of 444454155111 is 111551454444.

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

It is not a de Polignac number, because 444454155111 - 2¹¹ = 444454153063 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 444454155111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444454155113) 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, 74075692516 + ... + 74075692521.

It is an arithmetic number, because the mean of its divisors is an integer number (148151385038).

Almost surely, 2^444454155111 is an apocalyptic number.

444454155111 is a deficient number, since it is larger than the sum of its proper divisors (148151385041).

444454155111 is a wasteful number, since it uses less digits than its factorization.

444454155111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148151385040.

The product of its digits is 128000, while the sum is 39.

The spelling of 444454155111 in words is "four hundred forty-four billion, four hundred fifty-four million, one hundred fifty-five thousand, one hundred eleven".