265853054009 has 4 divisors (see below), whose sum is σ = 272035683216. Its totient is φ = 259670424804.

The previous prime is 265853053957. The next prime is 265853054069. The reversal of 265853054009 is 900450358562.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-265853054009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265853054069) 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, 3091314539 + ... + 3091314624.

It is an arithmetic number, because the mean of its divisors is an integer number (68008920804).

Almost surely, 2^265853054009 is an apocalyptic number.

It is an amenable number.

265853054009 is a deficient number, since it is larger than the sum of its proper divisors (6182629207).

265853054009 is an equidigital number, since it uses as much as digits as its factorization.

265853054009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6182629206.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 265853054009 in words is "two hundred sixty-five billion, eight hundred fifty-three million, fifty-four thousand, nine".