18434395265 has 64 divisors (see below), whose sum is σ = 26352974592. Its totient is φ = 12203136000.

The previous prime is 18434395249. The next prime is 18434395297. The reversal of 18434395265 is 56259343481.

It is not a de Polignac number, because 18434395265 - 2⁴ = 18434395249 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28669034 + ... + 28669676.

It is an arithmetic number, because the mean of its divisors is an integer number (411765228).

Almost surely, 2^18434395265 is an apocalyptic number.

It is an amenable number.

18434395265 is a deficient number, since it is larger than the sum of its proper divisors (7918579327).

18434395265 is a wasteful number, since it uses less digits than its factorization.

18434395265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1170.

The product of its digits is 3110400, while the sum is 50.

The spelling of 18434395265 in words is "eighteen billion, four hundred thirty-four million, three hundred ninety-five thousand, two hundred sixty-five".