264404046126013 has 4 divisors (see below), whose sum is σ = 273521427026940. Its totient is φ = 255286665225088.

The previous prime is 264404046126001. The next prime is 264404046126047. The reversal of 264404046126013 is 310621640404462.

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 117677411718084 + 146726634407929 = 10847922^2 + 12113077^2 .

It is a cyclic number.

It is not a de Polignac number, because 264404046126013 - 2⁵ = 264404046125981 is a prime.

It is a super-2 number, since 2×264404046126013² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264404046126083) 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, 4558690450420 + ... + 4558690450477.

It is an arithmetic number, because the mean of its divisors is an integer number (68380356756735).

Almost surely, 2^{264404046126013} is an apocalyptic number.

It is an amenable number.

264404046126013 is a deficient number, since it is larger than the sum of its proper divisors (9117380900927).

264404046126013 is an equidigital number, since it uses as much as digits as its factorization.

264404046126013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9117380900926.

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 264404046126013 in words is "two hundred sixty-four trillion, four hundred four billion, forty-six million, one hundred twenty-six thousand, thirteen".