265023010009 has 6 divisors (see below), whose sum is σ = 270781773914. Its totient is φ = 259384220400.

The previous prime is 265023010001. The next prime is 265023010019. The reversal of 265023010009 is 900010320562.

It can be written as a sum of positive squares in only one way, i.e., 205750238409 + 59272771600 = 453597^2 + 243460^2 .

It is not a de Polignac number, because 265023010009 - 2³ = 265023010001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265023010001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59984892 + ... + 59989309.

Almost surely, 2^265023010009 is an apocalyptic number.

It is an amenable number.

265023010009 is a deficient number, since it is larger than the sum of its proper divisors (5758763905).

265023010009 is an equidigital number, since it uses as much as digits as its factorization.

265023010009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119974295 (or 119974248 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 265023010009 in words is "two hundred sixty-five billion, twenty-three million, ten thousand, nine".