265852889121 has 4 divisors (see below), whose sum is σ = 354470518832. Its totient is φ = 177235259412.

The previous prime is 265852889117. The next prime is 265852889167. The reversal of 265852889121 is 121988258562.

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 not a de Polignac number, because 265852889121 - 2² = 265852889117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (265852889191) 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, 44308814851 + ... + 44308814856.

It is an arithmetic number, because the mean of its divisors is an integer number (88617629708).

Almost surely, 2^265852889121 is an apocalyptic number.

It is an amenable number.

265852889121 is a deficient number, since it is larger than the sum of its proper divisors (88617629711).

265852889121 is an equidigital number, since it uses as much as digits as its factorization.

265852889121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88617629710.

The product of its digits is 5529600, while the sum is 57.

The spelling of 265852889121 in words is "two hundred sixty-five billion, eight hundred fifty-two million, eight hundred eighty-nine thousand, one hundred twenty-one".