264440612031023 has 2 divisors, whose sum is σ = 264440612031024. Its totient is φ = 264440612031022.

The previous prime is 264440612030971. The next prime is 264440612031061. The reversal of 264440612031023 is 320130216044462.

It is an a-pointer prime, because the next prime (264440612031061) can be obtained adding 264440612031023 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264440612031023 - 2⁸ = 264440612030767 is a prime.

It is a super-2 number, since 2×264440612031023² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264440615031023) 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 as a sum of consecutive naturals, namely, 132220306015511 + 132220306015512.

It is an arithmetic number, because the mean of its divisors is an integer number (132220306015512).

Almost surely, 2^{264440612031023} is an apocalyptic number.

264440612031023 is a deficient number, since it is larger than the sum of its proper divisors (1).

264440612031023 is an equidigital number, since it uses as much as digits as its factorization.

264440612031023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 38.

Adding to 264440612031023 its reverse (320130216044462), we get a palindrome (584570828075485).

The spelling of 264440612031023 in words is "two hundred sixty-four trillion, four hundred forty billion, six hundred twelve million, thirty-one thousand, twenty-three".