18344535364 has 27 divisors (see below), whose sum is σ = 32351826423. Its totient is φ = 9101702400.

The previous prime is 18344535353. The next prime is 18344535379. The reversal of 18344535364 is 46353544381.

It is a happy number.

The square root of 18344535364 is 135442.

It is a perfect power (a square), and thus also a powerful number.

18344535364 is nontrivially palindromic in base 16.

It can be written as a sum of positive squares in 4 ways, for example, as 3382352964 + 14962182400 = 58158^2 + 122320^2 .

It is a super-2 number, since 2×18344535364² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 65282904 + ... + 65283184.

Almost surely, 2^18344535364 is an apocalyptic number.

18344535364 is the 135442-nd square number.

It is an amenable number.

18344535364 is a deficient number, since it is larger than the sum of its proper divisors (14007291059).

18344535364 is an frugal number, since it uses more digits than its factorization.

18344535364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 524 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 46.

The spelling of 18344535364 in words is "eighteen billion, three hundred forty-four million, five hundred thirty-five thousand, three hundred sixty-four".