264535635252241 has 4 divisors (see below), whose sum is σ = 267007930908912. Its totient is φ = 262063339595572.

The previous prime is 264535635252221. The next prime is 264535635252253. The reversal of 264535635252241 is 142252536535462.

It is a happy number.

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 not a de Polignac number, because 264535635252241 - 2⁵ = 264535635252209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264535635252221) 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, 1236147828175 + ... + 1236147828388.

It is an arithmetic number, because the mean of its divisors is an integer number (66751982727228).

Almost surely, 2^{264535635252241} is an apocalyptic number.

It is an amenable number.

264535635252241 is a deficient number, since it is larger than the sum of its proper divisors (2472295656671).

264535635252241 is a wasteful number, since it uses less digits than its factorization.

264535635252241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2472295656670.

The product of its digits is 51840000, while the sum is 55.

The spelling of 264535635252241 in words is "two hundred sixty-four trillion, five hundred thirty-five billion, six hundred thirty-five million, two hundred fifty-two thousand, two hundred forty-one".