18200044420343 has 16 divisors (see below), whose sum is σ = 18468337708800. Its totient is φ = 17932270898880.

The previous prime is 18200044420321. The next prime is 18200044420367. The reversal of 18200044420343 is 34302444000281.

It is a de Polignac number, because none of the positive numbers 2^k-18200044420343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18200044420643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437364608 + ... + 437406218.

It is an arithmetic number, because the mean of its divisors is an integer number (1154271106800).

Almost surely, 2^{18200044420343} is an apocalyptic number.

18200044420343 is a deficient number, since it is larger than the sum of its proper divisors (268293288457).

18200044420343 is a wasteful number, since it uses less digits than its factorization.

18200044420343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47702.

The product of its (nonzero) digits is 73728, while the sum is 35.

The spelling of 18200044420343 in words is "eighteen trillion, two hundred billion, forty-four million, four hundred twenty thousand, three hundred forty-three".