4540440551513 has 4 divisors (see below), whose sum is σ = 4547309599908. Its totient is φ = 4533571503120.

The previous prime is 4540440551497. The next prime is 4540440551531. The reversal of 4540440551513 is 3151550440454.

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 3773181931024 + 767258620489 = 1942468^2 + 875933^2 .

It is a cyclic number.

It is not a de Polignac number, because 4540440551513 - 2⁴ = 4540440551497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4540440551813) 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, 3434523206 + ... + 3434524527.

It is an arithmetic number, because the mean of its divisors is an integer number (1136827399977).

Almost surely, 2^{4540440551513} is an apocalyptic number.

It is an amenable number.

4540440551513 is a deficient number, since it is larger than the sum of its proper divisors (6869048395).

4540440551513 is an equidigital number, since it uses as much as digits as its factorization.

4540440551513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6869048394.

The product of its (nonzero) digits is 480000, while the sum is 41.

Adding to 4540440551513 its reverse (3151550440454), we get a palindrome (7691990991967).

The spelling of 4540440551513 in words is "four trillion, five hundred forty billion, four hundred forty million, five hundred fifty-one thousand, five hundred thirteen".