18478800743771 has 4 divisors (see below), whose sum is σ = 18827457361632. Its totient is φ = 18130144125912.

The previous prime is 18478800743729. The next prime is 18478800743791. The reversal of 18478800743771 is 17734700887481.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18478800743771 - 2¹⁰ = 18478800742747 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18478800743698 and 18478800743707.

It is not an unprimeable number, because it can be changed into a prime (18478800743791) 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, 174328308851 + ... + 174328308956.

It is an arithmetic number, because the mean of its divisors is an integer number (4706864340408).

Almost surely, 2^{18478800743771} is an apocalyptic number.

18478800743771 is a deficient number, since it is larger than the sum of its proper divisors (348656617861).

18478800743771 is an equidigital number, since it uses as much as digits as its factorization.

18478800743771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348656617860.

The product of its (nonzero) digits is 59006976, while the sum is 65.

The spelling of 18478800743771 in words is "eighteen trillion, four hundred seventy-eight billion, eight hundred million, seven hundred forty-three thousand, seven hundred seventy-one".