244150505021 has 4 divisors (see below), whose sum is σ = 258512299452. Its totient is φ = 229788710592.

The previous prime is 244150505009. The next prime is 244150505029. The reversal of 244150505021 is 120505051442.

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 191068648996 + 53081856025 = 437114^2 + 230395^2 .

It is a de Polignac number, because none of the positive numbers 2^k-244150505021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244150505029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7180897190 + ... + 7180897223.

It is an arithmetic number, because the mean of its divisors is an integer number (64628074863).

Almost surely, 2^244150505021 is an apocalyptic number.

It is an amenable number.

244150505021 is a deficient number, since it is larger than the sum of its proper divisors (14361794431).

244150505021 is a wasteful number, since it uses less digits than its factorization.

244150505021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14361794430.

The product of its (nonzero) digits is 8000, while the sum is 29.

Adding to 244150505021 its reverse (120505051442), we get a palindrome (364655556463).

The spelling of 244150505021 in words is "two hundred forty-four billion, one hundred fifty million, five hundred five thousand, twenty-one".