264444540513 has 8 divisors (see below), whose sum is σ = 357055920000. Its totient is φ = 174064760688.

The previous prime is 264444540499. The next prime is 264444540557. The reversal of 264444540513 is 315045444462.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 264444540513 - 2⁴ = 264444540497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (264444540593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557899638 + ... + 557900111.

It is an arithmetic number, because the mean of its divisors is an integer number (44631990000).

Almost surely, 2^264444540513 is an apocalyptic number.

It is an amenable number.

264444540513 is a deficient number, since it is larger than the sum of its proper divisors (92611379487).

264444540513 is a wasteful number, since it uses less digits than its factorization.

264444540513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115799831.

The product of its (nonzero) digits is 921600, while the sum is 42.

Adding to 264444540513 its reverse (315045444462), we get a palindrome (579489984975).

The spelling of 264444540513 in words is "two hundred sixty-four billion, four hundred forty-four million, five hundred forty thousand, five hundred thirteen".