264743434563 has 16 divisors (see below), whose sum is σ = 377867529600. Its totient is φ = 164372371200.

The previous prime is 264743434559. The next prime is 264743434597. The reversal of 264743434563 is 365434347462.

It is not a de Polignac number, because 264743434563 - 2² = 264743434559 is a prime.

It is a super-2 number, since 2×264743434563² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (264743438563) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39357838 + ... + 39364563.

It is an arithmetic number, because the mean of its divisors is an integer number (23616720600).

Almost surely, 2^264743434563 is an apocalyptic number.

264743434563 is a deficient number, since it is larger than the sum of its proper divisors (113124095037).

264743434563 is a wasteful number, since it uses less digits than its factorization.

264743434563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78722482.

The product of its digits is 17418240, while the sum is 51.

The spelling of 264743434563 in words is "two hundred sixty-four billion, seven hundred forty-three million, four hundred thirty-four thousand, five hundred sixty-three".