5263406165441 has 4 divisors (see below), whose sum is σ = 5263412818884. Its totient is φ = 5263399512000.

The previous prime is 5263406165411. The next prime is 5263406165447. The reversal of 5263406165441 is 1445616043625.

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 1698499660225 + 3564906505216 = 1303265^2 + 1888096^2 .

It is a cyclic number.

It is not a de Polignac number, because 5263406165441 - 2²² = 5263401971137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5263406165447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950260 + ... + 3785541.

It is an arithmetic number, because the mean of its divisors is an integer number (1315853204721).

Almost surely, 2^{5263406165441} is an apocalyptic number.

It is an amenable number.

5263406165441 is a deficient number, since it is larger than the sum of its proper divisors (6653443).

5263406165441 is an equidigital number, since it uses as much as digits as its factorization.

5263406165441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6653442.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 5263406165441 in words is "five trillion, two hundred sixty-three billion, four hundred six million, one hundred sixty-five thousand, four hundred forty-one".