18454838291211 has 8 divisors (see below), whose sum is σ = 28121658348544. Its totient is φ = 10545621880680.

The previous prime is 18454838291173. The next prime is 18454838291231. The reversal of 18454838291211 is 11219283845481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18454838291211 - 2¹⁹ = 18454837766923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18454838291231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439400911675 + ... + 439400911716.

It is an arithmetic number, because the mean of its divisors is an integer number (3515207293568).

Almost surely, 2^{18454838291211} is an apocalyptic number.

18454838291211 is a deficient number, since it is larger than the sum of its proper divisors (9666820057333).

18454838291211 is an equidigital number, since it uses as much as digits as its factorization.

18454838291211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878801823401.

The product of its digits is 4423680, while the sum is 57.

The spelling of 18454838291211 in words is "eighteen trillion, four hundred fifty-four billion, eight hundred thirty-eight million, two hundred ninety-one thousand, two hundred eleven".