264759957461 has 4 divisors (see below), whose sum is σ = 264768804300. Its totient is φ = 264751110624.

The previous prime is 264759957437. The next prime is 264759957463. The reversal of 264759957461 is 164759957462.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 164759957462 = 2 ⋅82379978731.

It can be written as a sum of positive squares in 2 ways, for example, as 169090374436 + 95669583025 = 411206^2 + 309305^2 .

It is a cyclic number.

It is not a de Polignac number, because 264759957461 - 2¹⁰ = 264759956437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264759957463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4378376 + ... + 4438433.

It is an arithmetic number, because the mean of its divisors is an integer number (66192201075).

Almost surely, 2^264759957461 is an apocalyptic number.

It is an amenable number.

264759957461 is a deficient number, since it is larger than the sum of its proper divisors (8846839).

264759957461 is an equidigital number, since it uses as much as digits as its factorization.

264759957461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8846838.

The product of its digits is 114307200, while the sum is 65.

Subtracting from 264759957461 its reverse (164759957462), we obtain a palindrome (99999999999).

The spelling of 264759957461 in words is "two hundred sixty-four billion, seven hundred fifty-nine million, nine hundred fifty-seven thousand, four hundred sixty-one".