18134461441 has 4 divisors (see below), whose sum is σ = 19088906800. Its totient is φ = 17180016084.

The previous prime is 18134461439. The next prime is 18134461463. The reversal of 18134461441 is 14416443181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14416443181 = 7 ⋅2059491883.

It is a cyclic number.

It is not a de Polignac number, because 18134461441 - 2¹ = 18134461439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18134461441.

It is not an unprimeable number, because it can be changed into a prime (18134461841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477222651 + ... + 477222688.

It is an arithmetic number, because the mean of its divisors is an integer number (4772226700).

Almost surely, 2^18134461441 is an apocalyptic number.

It is an amenable number.

18134461441 is a deficient number, since it is larger than the sum of its proper divisors (954445359).

18134461441 is an equidigital number, since it uses as much as digits as its factorization.

18134461441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954445358.

The product of its digits is 36864, while the sum is 37.

The spelling of 18134461441 in words is "eighteen billion, one hundred thirty-four million, four hundred sixty-one thousand, four hundred forty-one".