214021040544445 has 8 divisors (see below), whose sum is σ = 256828991073336. Its totient is φ = 171214337488896.

The previous prime is 214021040544431. The next prime is 214021040544449. The reversal of 214021040544445 is 544445040120412.

It can be written as a sum of positive squares in 4 ways, for example, as 46333588106884 + 167687452437561 = 6806878^2 + 12949419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 214021040544445 - 2¹⁷ = 214021040413373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 214021040544398 and 214021040544407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214021040544449) 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, 311490852 + ... + 312177181.

It is an arithmetic number, because the mean of its divisors is an integer number (32103623884167).

Almost surely, 2^{214021040544445} is an apocalyptic number.

It is an amenable number.

214021040544445 is a deficient number, since it is larger than the sum of its proper divisors (42807950528891).

214021040544445 is an equidigital number, since it uses as much as digits as its factorization.

214021040544445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623736671.

The product of its (nonzero) digits is 409600, while the sum is 40.

Adding to 214021040544445 its reverse (544445040120412), we get a palindrome (758466080664857).

The spelling of 214021040544445 in words is "two hundred fourteen trillion, twenty-one billion, forty million, five hundred forty-four thousand, four hundred forty-five".