210444134441 has 4 divisors (see below), whose sum is σ = 211545936384. Its totient is φ = 209342332500.

The previous prime is 210444134429. The next prime is 210444134479. The reversal of 210444134441 is 144431444012.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210444134441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210444134398 and 210444134407.

It is not an unprimeable number, because it can be changed into a prime (210444130441) 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, 550900685 + ... + 550901066.

It is an arithmetic number, because the mean of its divisors is an integer number (52886484096).

Almost surely, 2^210444134441 is an apocalyptic number.

It is an amenable number.

210444134441 is a deficient number, since it is larger than the sum of its proper divisors (1101801943).

210444134441 is a wasteful number, since it uses less digits than its factorization.

210444134441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101801942.

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 210444134441 its reverse (144431444012), we get a palindrome (354875578453).

The spelling of 210444134441 in words is "two hundred ten billion, four hundred forty-four million, one hundred thirty-four thousand, four hundred forty-one".