264931215361 has 4 divisors (see below), whose sum is σ = 264936657924. Its totient is φ = 264925772800.

The previous prime is 264931215331. The next prime is 264931215389. The reversal of 264931215361 is 163512139462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 156258137025 + 108673078336 = 395295^2 + 329656^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264931215361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264931215331) 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, 2647600 + ... + 2745841.

It is an arithmetic number, because the mean of its divisors is an integer number (66234164481).

Almost surely, 2^264931215361 is an apocalyptic number.

It is an amenable number.

264931215361 is a deficient number, since it is larger than the sum of its proper divisors (5442563).

264931215361 is an equidigital number, since it uses as much as digits as its factorization.

264931215361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5442562.

The product of its digits is 233280, while the sum is 43.

The spelling of 264931215361 in words is "two hundred sixty-four billion, nine hundred thirty-one million, two hundred fifteen thousand, three hundred sixty-one".