4544421111 has 8 divisors (see below), whose sum is σ = 6732475760. Its totient is φ = 3029614056.

The previous prime is 4544421107. The next prime is 4544421131. The reversal of 4544421111 is 1111244454.

It is a happy number.

4544421111 is a `hidden beast` number, since 4 + 5 + 444 + 211 + 1 + 1 = 666.

It is not a de Polignac number, because 4544421111 - 2² = 4544421107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 168311893 = 4544421111 / (4 + 5 + 4 + 4 + 4 + 2 + 1 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4544421131) 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, 84155920 + ... + 84155973.

It is an arithmetic number, because the mean of its divisors is an integer number (841559470).

Almost surely, 2^4544421111 is an apocalyptic number.

4544421111 is a deficient number, since it is larger than the sum of its proper divisors (2188054649).

4544421111 is a wasteful number, since it uses less digits than its factorization.

4544421111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168311902 (or 168311896 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 4544421111 is about 67412.3216556143. The cubic root of 4544421111 is about 1656.3782643830.

Adding to 4544421111 its reverse (1111244454), we get a palindrome (5655665565).

The spelling of 4544421111 in words is "four billion, five hundred forty-four million, four hundred twenty-one thousand, one hundred eleven".