264144435243 has 16 divisors (see below), whose sum is σ = 399246650880. Its totient is φ = 153995135904.

The previous prime is 264144435239. The next prime is 264144435253. The reversal of 264144435243 is 342534441462.

It is not a de Polignac number, because 264144435243 - 2² = 264144435239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 264144435195 and 264144435204.

It is not an unprimeable number, because it can be changed into a prime (264144435253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178234371 + ... + 178235852.

It is an arithmetic number, because the mean of its divisors is an integer number (24952915680).

Almost surely, 2^264144435243 is an apocalyptic number.

264144435243 is a deficient number, since it is larger than the sum of its proper divisors (135102215637).

264144435243 is a wasteful number, since it uses less digits than its factorization.

264144435243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356470258.

The product of its digits is 1105920, while the sum is 42.

The spelling of 264144435243 in words is "two hundred sixty-four billion, one hundred forty-four million, four hundred thirty-five thousand, two hundred forty-three".