264423001634005 has 16 divisors (see below), whose sum is σ = 336366627038064. Its totient is φ = 198861560294400.

The previous prime is 264423001634003. The next prime is 264423001634021. The reversal of 264423001634005 is 500436100324462.

It can be written as a sum of positive squares in 8 ways, for example, as 10074314088036 + 254348687545969 = 3174006^2 + 15948313^2 .

It is not a de Polignac number, because 264423001634005 - 2¹ = 264423001634003 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 (264423001634003) 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, 1823408646 + ... + 1823553655.

It is an arithmetic number, because the mean of its divisors is an integer number (21022914189879).

Almost surely, 2^{264423001634005} is an apocalyptic number.

It is an amenable number.

264423001634005 is a deficient number, since it is larger than the sum of its proper divisors (71943625404059).

264423001634005 is a wasteful number, since it uses less digits than its factorization.

264423001634005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3646963176.

The product of its (nonzero) digits is 414720, while the sum is 40.

Adding to 264423001634005 its reverse (500436100324462), we get a palindrome (764859101958467).

The spelling of 264423001634005 in words is "two hundred sixty-four trillion, four hundred twenty-three billion, one million, six hundred thirty-four thousand, five".