4020459895349 has 2 divisors, whose sum is σ = 4020459895350. Its totient is φ = 4020459895348.

The previous prime is 4020459895279. The next prime is 4020459895399. The reversal of 4020459895349 is 9435989540204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4019824502500 + 635392849 = 2004950^2 + 25207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4020459895349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4020459895291 and 4020459895300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4020459895399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2010229947674 + 2010229947675.

It is an arithmetic number, because the mean of its divisors is an integer number (2010229947675).

Almost surely, 2^{4020459895349} is an apocalyptic number.

It is an amenable number.

4020459895349 is a deficient number, since it is larger than the sum of its proper divisors (1).

4020459895349 is an equidigital number, since it uses as much as digits as its factorization.

4020459895349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55987200, while the sum is 62.

The spelling of 4020459895349 in words is "four trillion, twenty billion, four hundred fifty-nine million, eight hundred ninety-five thousand, three hundred forty-nine".