818981411363 has 4 divisors (see below), whose sum is σ = 867156788520. Its totient is φ = 770806034208.

The previous prime is 818981411351. The next prime is 818981411449. The reversal of 818981411363 is 363114189818.

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

It is not a de Polignac number, because 818981411363 - 2¹⁰ = 818981410339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (818981411323) 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, 24087688553 + ... + 24087688586.

It is an arithmetic number, because the mean of its divisors is an integer number (216789197130).

Almost surely, 2^818981411363 is an apocalyptic number.

818981411363 is a deficient number, since it is larger than the sum of its proper divisors (48175377157).

818981411363 is a wasteful number, since it uses less digits than its factorization.

818981411363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48175377156.

The product of its digits is 995328, while the sum is 53.

The spelling of 818981411363 in words is "eight hundred eighteen billion, nine hundred eighty-one million, four hundred eleven thousand, three hundred sixty-three".