265243304442513 has 16 divisors (see below), whose sum is σ = 372286019041280. Its totient is φ = 167515465464144.

The previous prime is 265243304442497. The next prime is 265243304442539. The reversal of 265243304442513 is 315244403342562.

It is a happy number.

265243304442513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 265243304442513 - 2⁴ = 265243304442497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265243304442113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90511081 + ... + 93395622.

It is an arithmetic number, because the mean of its divisors is an integer number (23267876190080).

Almost surely, 2^{265243304442513} is an apocalyptic number.

It is an amenable number.

265243304442513 is a deficient number, since it is larger than the sum of its proper divisors (107042714598767).

265243304442513 is a wasteful number, since it uses less digits than its factorization.

265243304442513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183932028.

The product of its (nonzero) digits is 8294400, while the sum is 48.

The spelling of 265243304442513 in words is "two hundred sixty-five trillion, two hundred forty-three billion, three hundred four million, four hundred forty-two thousand, five hundred thirteen".